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Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a
day. She feels that this average is too low. Stre selected a random sample of 11 smokers and
found that the mean number of cigarettes they smoked per day . The sample standard deviation
was 2.5 . At =0.05, is there enough evidence to support her claim? Assume that the population is
approximately normally distributed. Use the P-value method and a TI-83 Plus/TI-84 Plus
calculator. Part 1 of 4 (a) State the hypotheses and identify the claim. H0:H1:>30 This
hypothesis test is a test. Part: 1/4 Part 2 of 4 (b) Find the P-value. Round the answer to at least
four decimal places.

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  • 1. Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. Stre selected a random sample of 11 smokers and found that the mean number of cigarettes they smoked per day . The sample standard deviation was 2.5 . At =0.05, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the P-value method and a TI-83 Plus/TI-84 Plus calculator. Part 1 of 4 (a) State the hypotheses and identify the claim. H0:H1:>30 This hypothesis test is a test. Part: 1/4 Part 2 of 4 (b) Find the P-value. Round the answer to at least four decimal places.