In Exercises 31 and 32, check that the conditions for carrying out a one-sample z test for the population proportion p are met. SRS of 200 of the college's 15,000 living alumni to perform a test of...


36


In Exercises 31 and 32, check that the conditions for<br>carrying out a one-sample z test for the population<br>proportion p are met.<br>SRS of 200 of the college's 15,000 living alumni to<br>perform a test of Ho:p = 0.99 versus Ha: p < 0.99.<br>35. Home computers Refer to Exercise 31. In Jason's<br>SRS, 41 of the students had a computer at home.<br>31. Home computers Jason reads a report that says<br>pg 556<br>pg 555 80% of U.S. high school students have a computer<br>(a) Calculate the test statistic.<br>at home. He believes the proportion is smaller than<br>0.80 at his large rural high school. Jason chooses an<br>SRS of 60 students and records whether they have a<br>computer at home.<br>(b) Find the P-value using Table A or technology. Show<br>this result as an area under a standard Normal curve.<br>36. Walking to school Refer to Exercise 32. For<br>DeAnna's survey, 17 students in the sample said they<br>typically walk to school.<br>32. Walking to school A recent report claimed that 13%<br>of students typically walk to school.10 DeAnna thinks<br>that the proportion is higher than 0.13 at her large<br>elementary school, so she surveys a random sample<br>of 100 students to find out.<br>(a) Calculate the test statistic.<br>(b) Find the P-value using Table A or technology. Show<br>this result as an area under a standard Normal curve.<br>In Exercises 33 and 34, explain why we aren't safe<br>carrying out a one-sample z test for the population<br>proportion p.<br>37. Significance tests A test of Ho:p = 0.5 versus<br>Ha:p> 0.5 has test statistic z = 2.19.<br>33. No test You toss a coin 10 times to perform a test<br>of Ho:p = 0.5 that the coin is balanced against<br>Ha:p # 0.5.<br>(a) What conclusion would you draw at the 5% signifi-<br>cance level? At the 1% level?<br>If the alternative hypothesis were Ha:p + 0.5, what<br>conclusion would you draw at the 5% significance<br>level? At the 1% level?<br>(Ъ)<br>34. No test A college president says,

Extracted text: In Exercises 31 and 32, check that the conditions for carrying out a one-sample z test for the population proportion p are met. SRS of 200 of the college's 15,000 living alumni to perform a test of Ho:p = 0.99 versus Ha: p < 0.99.="" 35.="" home="" computers="" refer="" to="" exercise="" 31.="" in="" jason's="" srs,="" 41="" of="" the="" students="" had="" a="" computer="" at="" home.="" 31.="" home="" computers="" jason="" reads="" a="" report="" that="" says="" pg="" 556="" pg="" 555="" 80%="" of="" u.s.="" high="" school="" students="" have="" a="" computer="" (a)="" calculate="" the="" test="" statistic.="" at="" home.="" he="" believes="" the="" proportion="" is="" smaller="" than="" 0.80="" at="" his="" large="" rural="" high="" school.="" jason="" chooses="" an="" srs="" of="" 60="" students="" and="" records="" whether="" they="" have="" a="" computer="" at="" home.="" (b)="" find="" the="" p-value="" using="" table="" a="" or="" technology.="" show="" this="" result="" as="" an="" area="" under="" a="" standard="" normal="" curve.="" 36.="" walking="" to="" school="" refer="" to="" exercise="" 32.="" for="" deanna's="" survey,="" 17="" students="" in="" the="" sample="" said="" they="" typically="" walk="" to="" school.="" 32.="" walking="" to="" school="" a="" recent="" report="" claimed="" that="" 13%="" of="" students="" typically="" walk="" to="" school.10="" deanna="" thinks="" that="" the="" proportion="" is="" higher="" than="" 0.13="" at="" her="" large="" elementary="" school,="" so="" she="" surveys="" a="" random="" sample="" of="" 100="" students="" to="" find="" out.="" (a)="" calculate="" the="" test="" statistic.="" (b)="" find="" the="" p-value="" using="" table="" a="" or="" technology.="" show="" this="" result="" as="" an="" area="" under="" a="" standard="" normal="" curve.="" in="" exercises="" 33="" and="" 34,="" explain="" why="" we="" aren't="" safe="" carrying="" out="" a="" one-sample="" z="" test="" for="" the="" population="" proportion="" p.="" 37.="" significance="" tests="" a="" test="" of="" ho:p="0.5" versus="" ha:p=""> 0.5 has test statistic z = 2.19. 33. No test You toss a coin 10 times to perform a test of Ho:p = 0.5 that the coin is balanced against Ha:p # 0.5. (a) What conclusion would you draw at the 5% signifi- cance level? At the 1% level? If the alternative hypothesis were Ha:p + 0.5, what conclusion would you draw at the 5% significance level? At the 1% level? (Ъ) 34. No test A college president says, "99% of the alumni support my firing of Coach Boggs." You contact an

Jun 01, 2022
SOLUTION.PDF

Get Answer To This Question

Related Questions & Answers

More Questions »

Submit New Assignment

Copy and Paste Your Assignment Here