F17 latestart M13A7 40492 Intro Statistics (T Th 3-5:15P jrgran lu 12/7/17 155 A
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F17 latestart M13A7 40492 Intro Statistics (T Th 3-5:15P jrgran lu 12/7/17 155 AM Test: Chapter 7 Exanm Submit Test This Question: 1 pt 170126 (18 complete) This Test: 26 pts State whether each standardized test statistic y2 allows you to reject the null hypothesis. Explain (a) x2 9.397 (b) z2-28.876 9.390 28.869 (c) 2 = 28.862 (d)x2 9.383 50 (a) Choose the correct answer below O B. Do not reject the null hypothesis because the standardized test statistic is in the rejection region Reject the nuill hypothesis because the standardized test statistic is in the rejection region Reject the null hypothesis because the standardized test statistic is not in the rejection region. O C. Di (b) Choose the correct answer below A. Reject the null hypothesis because the standardized test statistic is in the rejection regon. O B. Do not reject the null hypothesis because the sta O C. Reject the null hypothesis because the standardized test statistic is not in the rejection region O D. Do not reject the null hypothesis because standardized the test statistic is not in the rejection region. (c) Choose the correct answer below test statistic is in the rejection region A. Do not reject the null hypothesis because the st test statistic is not in the region. Click to select your answerExplanation / Answer
(a) Here X2 = 9.397 is greater than the lower critical value of 9.390 so we fail to reject the null hypothesis because the test statistic is not in the rejection region. Option A is correct.
(b) Here X2 = 28.876 is greater than the upper critical value of 28.869 so we reject the null hypothesis because the test statistic in the rejection region. Option A is correct.
(c) Here X2 = 28.862 is lesser than the upper critical value of 28.869 so we fail to reject the null hypothesis because the test statistic not in the rejection region. Option A is correct.
(d) Here X2 = 9.383 is lesser than the lower critical value of 9.390 so we reject the null hypothesis because the test statistic in the rejection region. Option B is correct.
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