11.12.OA market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new televisioncommercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null13.hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the14.O commercial improved the mean purchase potential rating. Use a = 0.05 and the following data to test the hypothesis and comment on the value of thecommercial.15.Purchase RatingPurchase RatingIndividualAfterBeforeIndividualAfterBefore1.56.46.83754.486.What are the hypotheses?Ho: µa is - Select your answer -H: Ha is - Select your answer -Compute d (to 3 decimals). (Use rating after – rating before).Compute sa (to 1 decimal).What is the p-value?CAThe p-value is - Select your answer -What is your decision?- Select your answer -

Answered: Image /qna-images/answer/7d981493-7d04-478a-a4eb-3c77d20b0142.jpg

Answered: 12. A market research firm used a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A Michigan study concerning preference for outdoor activities used a questionnaire with a six-point Likert-type response in which 1 designated "not important" and 6 designated "extremely important." A random sample of n1 = 41 adults were asked about fishing as an outdoor activity. The mean response was x1 = 4.9. Another random sample of n2 = 50 adults were asked about camping as an outdoor activity. For this group, the mean response was x2 = 5.7. From previous studies, it is known that ?1 = 1.6 and ?2 = 1.5. Does this indicate a difference (either way) regarding preference for camping versus preference for fishing as an outdoor activity? Use a 5% level of significance.Note: A Likert scale usually has to do with approval of or agreement with a statement in a questionnaire. For example, respondents are asked to indicate whether they "strongly agree," "agree," "disagree," or "strongly disagree" with the statement. (a) What is the level of significance? .05 State the null and alternate…

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