Answer Happy

The mean exam score for 47 male high school students is 20.5 and the population standard deviation is 4.7. The mean exam score for 53 female high school students is 19.3 and the population standard deviation is 4.1. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. (a) Identify the claim and state Ho and Ha. What is the claim? O A. Male high school students have greater exam scores than female students. OB. Male and female high school students have different exam scores. O C. Male and female high school students have equal exam scores. OD. Male high school students have lower exam scores than female students. What are Ho and Ha? OA Ho: H1 =12 Haiti H2 B. Ho: My <H2 Hai H1 H2 Oc. Ho: My & H2 Hai H1 = 12

What are Ho and Ha? OA. Ho: M1 = 12 Hai H1 FH2 O B. Ho: H1 Suz Ha: H1 H2 O C. Ho: H1*12 H:H1 = P2 O D. Ho:11 242 He: Hy <H2 O E. Ho:11 > H2 Hai H1 H2 OF. Ho: My <H2 Hai My ZH2 (b) Find the critical value(s) and identify the rejection region(s). The critical value(s) is/are (Round to two decimal places as needed. Use a comma to separate answers as needed.)

.. What is/are the rejection region(s)? B. z< - 3.08, Z> -3.08 OA. Z< - 1.64, z> 1.64 O C. z>2.58 O E Z< -2.33 O G. Z< -2.33, Z> -2.33 0 0 D. z< -2.58, z> 2.58 OF. Z> -3.08 O H. z< 1.64 (c) Find the standardized test statistic z for M1-P2- ZE (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. O A. Reject Ho. The standardized test statistic is in the rejection region. O B. Fail to reject Ho. The standardized test statistic is in the rejection region. OC. Fail to reject Ho. The standardized test statistic is not in the rejection region. Get more help Next

(c) Find the standardized test statistic z for 141 - 42 (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. O A. Reject Ho. The standardized test statistic is in the rejection region. OB. Fail to reject Ho. The standardized test statistic is in the rejection region. O c. Fail to reject Ho. The standardized test statistic is not in the rejection region. OD. Reject Ho. The standardized test statistic is not in the rejection region. (e) Interpret the decision in the context of the original claim. At the 1% significance level, there is evidence to female high school students' exam scores. the claim that male high school students have exam scores Get more help Next