6. Sampling used to measure Parent Population ******* >>>^^^^^^^ ********^^^^ ^^*******>>>> ********^^^^^^ ^^^^^^^^^^^ ^^^>>>>>>> ******^^ * Parent Population : Group under study >***>^^^^**^ Sample is taken from parent population. Measurements are taken on the sample. If sampling was done correctly. measurements are representative of the Parent Population
17. Confidence Intervals 1.96 std deviations S ( ) = 95% of all observations 14,000 20,000 Est. Mean = 17,000 95% chance the true mean falls within here
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19. Confidence Intervals 1 S ( ) std deviations = 68.2% of all observations 15,500 18,500 17,000 68% chance the true mean falls within here
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31. Proof that CAGR is right We can check our answer by adding 11.4186% growth every year and you’ll arrive at the correct final year revenue 3.04B, exactly right!
Parameter- a measurement of of the Parent Population.(e.g. average income of all the Volvo in the world)
NONProbabuility Samples:Convenience Samples Jugement Samples --sample elements are hand-picked which is what we doQuota Samples-
Often we don’t know how the “real world” population is distributed, so we have to estimate ().There is no problem for two reasons: 1. variation usually changes for most variables of interest in marketing So, if the study is a repeat we can use old values we found for .2. We can calculate smaple variance Need to add blurb on “standard error of estimate”
Often we don’t know how the “real world” population is distributed, so we have to estimate ().There is no problem for two reasons: 1. variation usually changes for most variables of interest in marketing So, if the study is a repeat we can use old values we found for .2. We can calculate smaple variance Need to add blurb on “standard error of estimate”
Often we don’t know how the “real world” population is distributed, so we have to estimate ().There is no problem for two reasons: 1. variation usually changes for most variables of interest in marketing So, if the study is a repeat we can use old values we found for .2. We can calculate smaple variance Need to add blurb on “standard error of estimate”
Often we don’t know how the “real world” population is distributed, so we have to estimate ().There is no problem for two reasons: 1. variation usually changes for most variables of interest in marketing So, if the study is a repeat we can use old values we found for .2. We can calculate smaple variance Need to add blurb on “standard error of estimate”
Often we don’t know how the “real world” population is distributed, so we have to estimate ().There is no problem for two reasons: 1. variation usually changes for most variables of interest in marketing So, if the study is a repeat we can use old values we found for .2. We can calculate smaple variance Need to add blurb on “standard error of estimate”
Often we don’t know how the “real world” population is distributed, so we have to estimate ().There is no problem for two reasons: 1. variation usually changes for most variables of interest in marketing So, if the study is a repeat we can use old values we found for .2. We can calculate smaple variance Need to add blurb on “standard error of estimate”
Revenues above are from Wholesale Carrier B&C Forecast.From Frost & sullivan report 2006