Write the null and alternative hypotheses you would use to test each of the situations in parts (a) through (c).(a) A dictator is concerned about his "positives," that is, the percentage of the country's residents who express approval of his job performance. His political committee pays for a series of TV ads, hoping that they can keep thepositives above 32%. They will use follow up polling to assess the ads' effectiveness. Let p be the proportion of the country's residents who express approvalthe dictator's performance.Ha: p = 0.32Ha: P > 0.32(b) Is an eight-section spinner fair? Let p represent the probability of the spinner landing on any particular section.Ho: P =HA:P(c) Only about 25% of people who try to raise their GPA succeed. Sellers of a motivational tape claim that listening to the recorded messages can help people succeed. Let p be the proportion of people who try to raise their GPAand succeed.Ho: p = 0.25HA: P > 0.25

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Answered: Write the null and alternative…

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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The medical community unanimously agrees on the health benefits of regular exercise, but are adults listening? During each of the past 15 years, a polling organization has surveyed americans about their exercise habits. In the most recent of these polls, slightly over half of all American adults reported that they exercise for 30 or more minutes at least three times per week. The following data show the percentages of adults who reported that they exercise for 30 or more minutes at least three times per week during each of the 15 years of this study. Year Percentage of Adults Who Exercise 30 or more minutes at least three times per week 1 41.1 2 45 3 47.2 4 45.6 5 46.5 6 44.4 7 47.7 8 49.9 9 48 10 49 11 50 12 52.2 13 50.7 14 54.5 15 52.3 use simple linear regression to find the parameters for the line that minimizes MSE for this time series. Do not round your interim computations and…
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