Let n = 80, X1 = 30, na = 80, and X2 = 40. Complete parts (a) and (b) below. a. At the 0.10 level of significance, is

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Let N 80 X1 30 Na 80 And X2 40 Complete Parts A And B Below A At The 0 10 Level Of Significance Is 1 (2.03 KiB) Viewed 30 times

Let N 80 X1 30 Na 80 And X2 40 Complete Parts A And B Below A At The 0 10 Level Of Significance Is 2 (44.43 KiB) Viewed 30 times

Let n = 80, X1 = 30, na = 80, and X2 = 40. Complete parts (a) and (b) below.

a. At the 0.10 level of significance, is there evidence of a significant difference between the two population proportions? Determine the null and alternative hypotheses. Choose the correct answer below. & A. Ho: I = 22 Hp : ag #12 O B. Ho: Tg the H: 14 =12 OD. Ho: 112 Hp : ap >72 O C. Ho : Tg 2h Hp : ay <T2 Calculate the test statistic based on the difference P.-P2- ZSTAT = -1.48 (Round to two decimal places as needed.) Determine the rejection region. Choose the correct answer below and fill in any answer box(es) in your choice. (Round to three decimal places as needed.) O A ZSTAT> + OB. ZSTAT - C. ZITAT - 1.645 or ZSTAT>+ 1.645 Determine a conclusion. Choose the correct answer below. A. Since ZSTAT is in the nonrejection region, there is insufficient evidence to conclude that there is a significant difference between the two proportions. O B. Since ZSTAT is in the rejection region, there is sufficient evidence to conclude that there is a significant difference between the two proportions. OC. Since ZSTAT is in the nonrejection region, there is sufficient evidence to conclude that there is a significant difference between the two proportions. OD. Since ZSTAT is in the rejection region, there is insufficient evidence to conclude that there is a significant difference between the two proportions. b. Construct a 90% confidence interval estimate of the difference between the two population proportions -0.2103'st, -125 0.0103 (Round to four decimal places as needed.)