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8 POINTS Ultimately, the investigator is interested in determining if patient characteristics are different among groups who report various preventive behaviors during the COVID-19 pandemic. One of the questions the investigator has is: Is there a difference in the number of preventive behaviors (PKV_PREVSUM) patients report between two groups based on sex, males and females (DMV_SEX)? Conduct a formal hypothesis test to answer this question (choose the appropriate statistical test, explain why you chose it, write out your null and alternative hypotheses, run the test, and interpret the results). Include appropriate output from SPSS to show what you did. 8 POINTS Another question the investigator has is: Is there a difference in the number of preventive behaviors (PKV_PREVSUM) patients report using among four groups (White non- Hispanic, Black non-Hispanic, Hispanic, and Other/Unknown) based on race (DMV_RACE). Conduct a formal hypothesis test to answer this question (choose the appropriate statistical test, explain why you chose it, write out your null and alternative hypotheses, run the test, and interpret the results). Include appropriate output from SPSS to show what you did. 8 POINTS Finally, the investigator asks if there is an association between reporting being unable to get care for a previous condition (ACV_TYPTREAT) and speaking a language other than English at home (DMV_OTHRLANG)? Conduct a formal hypothesis test to answer this question (choose the appropriate statistical test, explain why you chose it, write out your null and alternative hypotheses, run the test, and interpret the results). Include appropriate output from SPSS to show what you did. Is there a significant difference in the proportions of people reporting being unable to get care for a previous condition between groups based on speaking English at home? How do you know?.

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This is the final project: In this final assignment, we will revisit datasets that we have utilized in previous assignments, but with new objectives. In the Week One assignment, you looked at mortality in your particular state, with two different metrics: the first was numbers of deaths, and the second was years of life lost. For this question, return to the original dataset, but this time first pool all cancer causes of death together, so that cancer constitutes the only category for cause of death. Then, repeat your analyses from Week One. How do your conclusions change? In the Week Two assignment, you looked at sex ratios for births in your state. Take the data you have assembled from the second part of your Week Two assignment, namely, numbers of first-born boy and girl births in your state between 2007 and 2012, separately by racial group (i.e., American Indians, Asians, Blacks, and Whites). Form a two-by-four contingency table from these data: the two row categories are female (girl) and male (boy), and the four column categories are the four racial groups. Calculate the chi-square statistic from this contingency table, and interpret the result. Return to the CDC Wonder website , and obtain the numbers of births in your state between 2007 and 2012, by month. (Disregard gender, or race, or birth order—you want all births). Calculate a chi-square statistic to assess whether there is any seasonality to births. (Your null hypothesis is that births should be equally likely to occur in any of the 12 months. We are ignoring the varying lengths of the months to simplify calculations.) How would you interpret your findings? Explain in 500 words in APA format supported by scholarly sources. BONUS: Give a graphical representation of your findings for this portion highlighting what you consider significant. In the Week Three assignment, you were given levels of tumor-associated antigens in a sample of 90 normal (non-cancer) individuals, and 160 hepatocellular carcinoma (HCC) patients. Here is a proposed diagnostic test for HCC: For each individual, calculate a numerical score: score = -3.95 + 10.7 * HCC1 - 4.14 * P16 + 13.95 * P53 + 28.92 * P90 + 6.48 * survivin (This equation was derived from logistic regression.) If this score is positive (i.e., > 0), diagnose this individual as an HCC patient; if this score is negative (i.e., <0), diagnose this individual as normal (i.e., non-cancer). Apply this rule to the entire cohort of 250 individuals. Report the sensitivity of this rule, the specificity, the false positive rate, the false negative rate, and the overall accuracy. Do you think the score function provides a good diagnostic test for HCC? Explain. In the Week Four assignment, we considered a simple two-by-two crossover trial of a new experimental treatment for interstitial cystitis. We calculated t tests for carryover and treatment effects, but we have not yet considered period effects. It is unlikely that there are any period effects in ...

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Chapter 9

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Page 266 LEARNING OBJECTIVES · Explain how researchers use inferential statistics to evaluate sample data. · Distinguish between the null hypothesis and the research hypothesis. · Discuss probability in statistical inference, including the meaning of statistical significance. · Describe the t test and explain the difference between one-tailed and two-tailed tests. · Describe the F test, including systematic variance and error variance. · Describe what a confidence interval tells you about your data. · Distinguish between Type I and Type II errors. · Discuss the factors that influence the probability of a Type II error. · Discuss the reasons a researcher may obtain nonsignificant results. · Define power of a statistical test. · Describe the criteria for selecting an appropriate statistical test. Page 267IN THE PREVIOUS CHAPTER, WE EXAMINED WAYS OF DESCRIBING THE RESULTS OF A STUDY USING DESCRIPTIVE STATISTICS AND A VARIETY OF GRAPHING TECHNIQUES. In addition to descriptive statistics, researchers use inferential statistics to draw more general conclusions about their data. In short, inferential statistics allow researchers to (a) assess just how confident they are that their results reflect what is true in the larger population and (b) assess the likelihood that their findings would still occur if their study was repeated over and over. In this chapter, we examine methods for doing so. SAMPLES AND POPULATIONS Inferential statistics are necessary because the results of a given study are based only on data obtained from a single sample of research participants. Researchers rarely, if ever, study entire populations; their findings are based on sample data. In addition to describing the sample data, we want to make statements about populations. Would the results hold up if the experiment were conducted repeatedly, each time with a new sample? In the hypothetical experiment described in Chapter 12 (see Table 12.1), mean aggression scores were obtained in model and no-model conditions. These means are different: Children who observe an aggressive model subsequently behave more aggressively than children who do not see the model. Inferential statistics are used to determine whether the results match what would happen if we were to conduct the experiment again and again with multiple samples. In essence, we are asking whether we can infer that the difference in the sample means shown in Table 12.1 reflects a true difference in the population means. Recall our discussion of this issue in Chapter 7 on the topic of survey data. A sample of people in your state might tell you that 57% prefer the Democratic candidate for an office and that 43% favor the Republican candidate. The report then says that these results are accurate to within 3 percentage points, with a 95% confidence level. This means that the researchers are very (95%) confident that, if they were able to study the entire population rather than a sample, the actual percentage who preferred th ...

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Further details on the write–up (& grading) of your survey: 1) First lay out what are your research objectives and hypotheses to be tested by your survey. This section will discuss what the goals of your survey are. These can come from any source, your reading of the background material, the secondary data, the class discussion, the focus groups findings or even your own ideas. You should include some discussion of how you settled on what objectives and/or hypotheses to explore and what actions your results might lead to for the ARCBS. 2) Next discuss what specific aspects (constructs) you are going to need to measure to be able to address your objectives and hypotheses above. For example: “To explore our hypothesis concerning the role of acculturation in predicting blood donation, we will need to measure the respondent’s acculturation and sense of acceptance into Australia mainstream culture, respondent background (including ethnic background, language proficiency, years in Australia), along with their likelihood of donating blood in Australia.” Aspect can be broadly defined and might include attitudes, perceptions, motivations, barriers to action, behavioural intentions, past behaviours, and demographics. The idea is to make explicit what things you need to measure and to make clear how they relate to your objectives. 3) Next present your actual measures and discuss how they align with the aspects you need to measure. You will want to discuss what they capture and why you designed the measures the way you did. This is where you demonstrate that you did not just write the first thing that came to you but thought about how it should be constructed to get you the most information. Your chance to give the rationale for your scaling decisions. 4) Finally discuss the limitations of your survey. You might always want to discuss the limitations of using surveys to meet the objectives you set forth. This section should discuss what you would do differently, if you had more resources (e.g., research experience, time, money, people). The goal of this section is to demonstrate that you understand the issues that concern the use of this research technique for addressing this problem. Nuts and Bolts: 1) You need to turn in a hardcopy of your report in class (week 6) and submit a softcopy on BB. 2) Your “actual” survey should be placed in the appendix section of the write-up. 3) The report should involve at least 4 pages of text (not including the survey itself or any appendices). You won’t be able to do a good job on all of the above in less space than that. The 6 page upper limit is a soft limit; meaning you can go somewhat beyond this limit without grading penalty. But remember the more you write, the more contribution and insight the grader will expect to see. If you are above 8 pages of text you should look to tighten your discussion. wuyingrui 高亮 4) Report should ...

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7. In pea plants, round (R) is dominant to wrinkled (r). A heterozygous female is crossed with a wrinkled male. Make a Punnett Square to determine the possible offspring. a. What are the possible genotypes of the offspring? b. What are the possible phenotypes of the offspring? c. What is the probability of having an offspring that is round? d. What is the probability of having an offspring that is homozygous?.

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7. In cats, some are black, some are orange, and some are calico (fur that is both black and orange.) All calico cats are always female. This trait represents two inheritance patterns. List which two and explain how you know. 8. An organism has three different versions of Gene Tyx - version a,b and c. Determine the inheritance pattern of this trait. Then list below all of the different genotypes that an organism with this gene could have..

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7. What do foxes and birds have in common? a. They are both omnibores b. They are both predators c. They are both prey d. Both A and B 8. Birds, grasshoppers, chipmunks, and caterpillars are all a. Carnivores b. Predators c. Prey d. Herbivores 9. From what do the grass and trees receive their energy? a. The sun b. The grasshopper c. The birds d. The chipmunk 16. Which animal is not the prey of the owl? a. The red-tailed hawk b. The chipmunk c. The fox d. The bird n. Which of the following is a herbivore? a. The bird b. The caterpillar c. The fox d. The owl 12. What do the chipmunk, bird, caterpillar, and the grass all have in common? a. They are all predators b. They have no predators c. They are part of a single food chain d. They all provide energy for the fox 13. What do the owl and the red-tailed hawk have in common? a. They are both prey b. They are both producers c. They are both predators d. They are both herbivores 4. Which animal would best fill in the blank for the food chain? Acorn Owl a. The red-tailed hawk b. The chipmunk c. The fox.

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7. Using terms from the key on the right, correctly identify all muxelas provided with leader lines in the illastration. Ko a. Hiceps bractiin b. trachialis c. Brachioradialis d. ettenvor campi radialis longhas 6. fleror carpi radialn f. Aexor cuepi tulnaris f. Ilewor digiturum superficialis h. palmaris lengas 1. pronater teres *. Une the key prowided in question 7 to identify the mucles describod below. (Sarne ehoices from the key will be used morn once) 1. Aexes and supinates the fornarm 6. fieces the band and middle phalanges: 2. muscle located in the postenor curpartment of the forcarm 7. prouses the forearm 1. forcarm fletani: no role in supination (two museles) 8. Hexes and abducts the haed 4. masele located medial to the palmaris loeges 9. ertends and abducts the hand 5. Aexer and abducts the hand 10. Aat mucle that is a weak hand flexor skin of the palmMuscles of the Lower Limb 9. Using the temis from the key on the right, correctly identify all muscles provided with leader lines in the ilisitration betn Key: a. adductor longas b. extensor digitoruns longus e. Gibularis longes 4. gastrocbemus c. rectas femoeris f. sartorius g. 3eltus h. Aetsor facie lata 1. vastus latceralis j. vates medialis. 10. Use the key terms in queition 9 ta fespeed to the deicripticai below. 1. "aiter's muscle" 5. peiterior cueparanent museles that eatie plactar fiesion of the foon (1wo muscles) 2. Interal compartincit music that plastar flexes: 6. adduets the thigh, as uhen suschns at atd everts the foed ancaticen 3. ahdocts the thigh to take be " in caie" ance 7. exteade the bes 4. exiends leg and stabyres kne (fino muncles) 8. exends leg and flenes thighgeneral Review: Muscle Recognition 11. Identify each lettered musele in the illustration of the haman anterior supcricial mesculanure by matching its letrer with or following moscie names: 1. addoctor longes 2. biceps brechii 3. brochiotadialis 4. dehoid 5. evenser tigitoram longur 6. exierral oblique 7. fibuliris longas 8. fexor carpi radialio 9. fexor curpi ulnars 10. frontel belly of cpicranius 11. gastrocnemilab 12. gracilis: 13. Hhopioat 14. intertostals 15. internal oblique 16. masicter 17. otbicularis eculi 18. atbacularis oris 19. palmarns loojus 20. pestineus 21. pectoralis major 22. pectorala minor 23. plarysma 24. pronator tetei 25. roctus abdominis 26. rectus femaris 27. sartotus 28. serratus anterior 33. uenuer tascue lus 33. vatus latenls 29. soleus 14. tbialis anterior 19. vinis mithials 30. sternocledomastoid 35. trancerus ahbienis 40. aygonaicus 31. siemohyoid 36. traperias 32. temporalis 37. tricepi trachilthe Solowire meste mames: 1. Modoter ragnes 2. biceptionolis 3. beictiatis 4. brachionatalis 5. delinal 6. exlenke carpi tadialis Songar 7. cuspaver carpi ulsarib. x calenoor dipisotumi 9. extenal oblique 10. fccker carpe uluant 11. Zealrocnemias -12. Dhecus itiasian? 13. gluers medie 14 eractin 15. iliotitial inact (irendon) 16. intaiginum 17. Ihtivimer dant 18. oscipial belly of or ered.

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8) Protein synthesis begins when in the nucleus of each cell serves as a template to make strands of 9) Protein process of continuous breakdown and synthesis of protein from its amino acids 10) Two roles of protein are: 11) is removal of the amino group from a compound such as an amino acid. 12) Nitrogen balance: people who are sick or in trauma and people with kidney disease. 13) A protein is a protein containing all the amino acids essential in human nutrition in amounts adequate for human use. 14) The quality of a protein is determined by its: and amino acid 15) How can vegetarians meet their protein needs without eating meat? is the deficiency disease caused by inadequate protein in the presence of adequate food energy. 16) is the disease of starvation and.

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8. IPOsinitial public offerings of stockcreate billions of dollars of new wealth for owners, managers, and employees of companies that were previously privately owned. Nevertheless, hundreds of large and thousands of small companies remain privately owned. The revenues of a random sample of 10 firms from the largest private companies list are given in the table to the right. Revenue (in billion) $12 $2 $34 $7 $12 $3 $10 $4 $7 $3 a. Use a 98% confidence interval to estimate the mean revenue of the population of companies in question. b. What characteristic must the population possess to ensure the appropriateness of the estimation procedure in part a? c. Suppose a magazine reports that the true mean revenue of all companies on the list is $5.0 billion. Is this claim believable?.

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8. Agreement and disagreement among economists Suppose that Sean, an economist from a business administration program in Georgia, and Yvette, another economist from an investigative reporting group, are both guests on a popular science podcast. The host of the podcast is facilitating their debate over government intervention. The following dialogue represents a portion of the transcript of their discussion: Yvette: The usefulness of government intervention in the economy is a long-standing issue that economists continue to debate, Sean: I feel that government involvement in the economy should be reduced because government programs cause more harm than 900g. Yvette: While I do agree that government programs can be inefficient, I really think they are necessary to help the less fortunate. The disagreement, between these economists is most likely due to Despite their differences, with which proposition are two economists chosen at random most likely to agree? Central banks should focus more on maintaining low unemployment than on maintaining low inflation. Business managers can raise profit more easily by reducing costs than by raising revenue. Employers should not be restricted from outsourcing work to foreign nations..

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