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The test is: 19 pt 2 right-tailed two-tailed left-tailed O O The test statistic is: (to 3 decimals) The p-value is: (to 4 decimals) Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis. Question 14 You wish to test the following claim a significance level of o = 0.02. Ho:p = 0.26 Ha: p > 0.26 You obtain a sample of size n = 533 in which there are 152 successful observations. a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? P-value = Use Technology Round to 4 decimal places. c. The p-value is... O less than (or equal to) a O greater than ord. This test statistic leads to a decision to... 'Vl PT ' ! O reject the null O accept the null Ofail to reject the null e. As such. the final conclusion is that... Q There is sufficient evidence to warrant rejection of the claim that the population proportion is greater than 0.26. Q There is not sufficient evidence to warrant rejection of the claim that the population proportion is greater than 0.26. O The sample data support the claim that the population proportion is greater than 0.26. Q There is not sufficient sample evidence to support the claim that the population proportion is greater than 0.26. . Question 15 You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly less than 0.56. You use a significance level of o = 0.01. Ho: p = 0.56 Hi:p 0.72 Calculate the test statistic, rounded to 3 decimal places 2 =. Question 17 In a recent Super Bowl, a TV network predicted that 31 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 130 people who saw the commercials and found that 38 of them said they would watch one of the television shows. Suppose you have the following null and alternative hypotheses for a test you are running: Ho: p = 0.31 Ha:p # 0.31 Calculate the test statistic, rounded to 3 decimal places Z =I Question '18 v 0.1 OHo: p = 0.1 Hi:p > 0.1 O Ho: p = 0.1 Hi:p # 0.1 O Ho: / = 0.1 Hi:p 0.1This test statistic leads to a decision to... ! CI reject the null I U Q accept the null Cl fail to reject the null As such. the final conclusion is that... Q There is sufficient evidence to warrant rejection ofthe claim that the proportion of stocks that went up is is more than [1.3. Q There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. O The sample data support the claim that the proportion of stocks that went up is is more than 0.3. C' There is not sufficient sample evidence to support the claim that the proportion of stocks that went up is is more than 0.3
