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Do Homework - Christopher Morisset Google Chrome Secure https://www.mathxl.com/Student/ aspx?homeworkld 442468533&questionld; 7&flushed-falseicld; 45887508 centerwin yes PPD502X: Statistical Foundations for Public Management and Poli Christopher Morisset | 10/28/17 2:25 AM Homework: Chapter 10 Save Score: 0 of 1 pt 7 of 7 (3 complete)> HW Score: 38.1%, 2.67 of 7 pts 10.5.2-T Question Help A simple random sample of size n = 200 drivers were asked if they drive a car manufactured in a certain country. Of the 200 drivers surveyed, 104 responded that they did. Determine if more than half of all drivers drive a car made in this country at the = 0.05 level of significance. Complete parts (a) through (d). (a) Determine the null and alternative hypotheses. Ho: p = 0.5 H: p >0.5 (b) Calculate the P-value. P-value- Round to three decimal places as needed.) .. 1.1 Ví :/ ("J) More Enter your answer in the answer box and then click Check Answer parts remaining Clear All Check Answer 2:25 AM Type here to search 10/28/2017

Explanation / Answer

Here phat=104/200=0.52

Now SEp=sqrt(pq/n)=0.035

Hence z statistics is

z=(phat-p)/SEp=(0.52-0.5)/0.035=0.5657

Hence P value is P(z>0.5657)=0.2858

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