CONTEXT: Use the CerealAd.mtw dataset in the Minitab sample library. This repres

Question

CONTEXT: Use the CerealAd.mtw dataset in the Minitab sample library. This represents a systematic random sample of cereal buyers. Test if those that saw the ad (VIEWAD) for HealthyPlus had a higher percentage to buy HealthyPlus (BOUGHT 0=no, 1=yes) than those that did not see the ad. That is, is the ad showing an impact to get people to buy HealthyPlus? Research Problem: Test if those that saw the ad for HealthyPlus had a higher percentage to buy HealthyPlus than those that did not see the ad.

Explanatory variable: ViewAd

Group 1 = Did Not see ad

Group 2 = Did see ad

Hypotheses: Ho: p1 – p2 = 0

Ha: p1 – p2 < 0 = .05

1. What is the alternative hypothesis if "Saw ad" is group 1?

p1 - p2 > 0

p1 - p2 < 0

p1 - p2 = 0

d. p1 - p2 > 0

p1 - p2 > 0

p1 - p2 < 0

p1 - p2 = 0

d. p1 - p2 > 0

Explanation / Answer

Here null hypothesis : H0 : p1 - p2 = 0

so alternative Hypothesis : Ha : p1 - p2 > 0 here "Saw ad" is group 1

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