E Homework: HW 8 Question 4, 10.1.15 HW Score: 75.05%, 63.79 of 85 points Part 6 of 6 Points: 2.78 of 5 Save A social service organization reports that the level of educational attainment of mothers receiving food stamps is uniformly distributed. To test this claim, you randomly select 97 mothers who currently receive food stamps and record the educational attainment of each. The results are shown in the table on Response Frequency, f the right. At a = 0.025, can you reject the claim that the distribution is uniform? Complete parts (a) through (d) below. Not a high school graduate 33 High school graduate 39 College (1 year or more) 25 Xo = 7.378 (Round to three decimal places as needed.) Choose the correct rejection region below. OA. XSXO B. X - N OC. X zxO D. X Xo (c) Calculate the test statistic. X" = 3.052 (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim. enough evidence to reject the claim that the distribution of educational attainment responses uniform. Ho- At a 2.5% significance level, thereHomework: HW 8 Question 13, *11.1.17-T HW Score: 75.05%, 63.79 of 85 points Part 4 of 5 Points: 3.33 of 5 Save Randomly selected birth records were obtained, and categorized as listed in the table to the right. Use a 0.01 significance level to test the reasonable claim that births occur with equal frequency on the different days of the week. How might the apparent lower frequencies on Saturday and Sunday be explained? Day Sun Mon Tues Wed Thurs Fri Sat Number of Births 35 64 60 58 61 60 49 Calculate the test statistic, x x2 = 11.059 (Round to three decimal places as needed.) Calculate the P-value. P-value = .0866 (Round to four decimal places as needed.) What is the conclusion for this hypothesis test? A. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week. O B. Reject Ho . There is insufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week. O C. Reject Ho. There is sufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week. O D. Fail to reject Ho. There is insufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week.=Homework: HW 8 Question 12, *11.1.13-T HW Score: 75.05%, 63.79 of 85 points Part 3 of 5 Points: 0.83 of 5 Save The table below lists the frequency of wins for different post positions in a horse race. A post position of 1 is closest to the inside rail, so that horse has the shortest distance to run. (Because the number of horses varies from year to year, only the first 10 post positions are included.) Use a 0.05 significance level to test the claim that the likelihood of winning is the same for the different post positions. Based on the result, should bettors consider the post position of a horse race? Post Position A 10 Co O Wins 20 11 16 11 12 Determine the null and alternative hypotheses. Ho: Wins occur with equal frequency in the different post positions H1: At least one post position has a different frequency of wins than the others. Calculate the test statistic, x x2 = 13.333 (Round to three decimal places as needed.) Calculate the P-value. P-value = (Round to four decimal places as needed.)