Large companies typically collect volumes of data before designing a product, not only to gain information as to whether the product should be released, but also to pinpoint which markets would be the best targets for the product. Several months ago, I was interviewed by such a company while shopping at a mall. I was asked about my exercise habits and whether or not I'd be interested in buying a video/DVD designed to teach stretching exercises. I fall into the male, 18 - 35-years-old category, and I guessed that, like me, many males in that category would not be interested in a stretching video. My friend Linda falls in the female, older-than-35 category, and I was thinking that she might like the stretching video. After being interviewed, I looked at the interviewer's results. Of the 85 people in my market category who had been interviewed, 16 said they would buy the product, and of the 110 people in Linda's market category, 25 said they would buy it. Assuming that these data came from independent, random samples, can we conclude (at the 0.05 level of significance) that the proportion p, of al mall shoppers in my market category who would buy the product is less than the proportion p, of all mall shoppers in Linda's market category who would buy the product? Perform a one-tailed test. Then complete the parts below.
Large companies typically collect volumes of data before designing a product, not only to gain information as to whether the product should be released, but also to pinpoint which markets would be the best targets for the product. Several months ago, I was interviewed by such a company while shopping at a mall. I was asked about my exercise habits and whether or not I'd be interested in buying a video/DVD designed to teach stretching exercises. I fall into the male, 18 - 35-years-old category, and I guessed that, like me, many males in that category would not be interested in a stretching video. My friend Linda falls in the female, older-than-35 category, and I was thinking that she might like the stretching video. After being interviewed, I looked at the interviewer's results. Of the 85 people in my market category who had been interviewed, 16 said they would buy the product, and of the 110 people in Linda's market category, 25 said they would buy it. Assuming that these data came from independent, random samples, can we conclude (at the 0.05 level of significance) that the proportion p, of al mall shoppers in my market category who would buy the product is less than the proportion p, of all mall shoppers in Linda's market category who would buy the product? Perform a one-tailed test. Then complete the parts below.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 13CYU
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(d) | Find the critical value at the
0.05
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(e) | Can we conclude that the proportion of mall shoppers in my market category who would buy the product is less than the proportion in Linda's market category who would? |
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