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1 . The design of a package or bottle can have an important effect on a company s bottom line. In this case a brand
The design of a package or bottle can have an important effect on a companys bottom line. In this case a brand group wishes to research consumer reaction to a new bottle design for a popular soft drink. Because it is impossible to show the new bottle design to all consumers the brand group will use mall intercept method to select a sample of consumers. For each consumer interviewed, a bottle image composite score will be found by adding the consumers numerical responses to the five questions. It follows that the minimum possible bottle image composite score is resulting from a response of on all five questions and the maximum bottle image composite score is resulting from a response of on all five questions The scores of consumers is given below: marks
a Develop a confidence interval for the population composite score.
b Furthermore, experience has shown that the smallest acceptable bottle image score for a successful bottle design is Test the hypothesis at significance level that the new design will be accepted by the consumers.
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