E Homework: HW 8 Question 13, *11.1.17-T HW Score: 61%, 51.85 of 85 points Part 3 of 5 Points: 1.67 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 Determine the null and alternative hypotheses. Ho: Births occur with the same frequency on the different days of the week. H1: At least one day has a different frequency of births than the other days Calculate the test statistic, x2 = 11.059 (Round to three decimal places as needed.) Calculate the P-value. P-value = (Round to four decimal places as needed.)E Homework: HW 8 Question 15, *11.2.15 HW Score: 61.98%, 52.68 of 85 points Part 3 of 4 Points: 3.18 of 5 Save A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.05 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? Human activity Natural patterns Don't know Male 315 148 42 Female 334 141 40 Click here to view the chi-square distribution table Identify the null and alternative hypotheses. Ho : The sex of the respondent and the choice for the cause of global warming are independent. H 1 : The sex of the respondent and the choice for the cause of global warming are dependent. Compute the test statistic. 0.677 (Round to three decimal places as needed.) Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.)Homework: HW 8 Question 8, 10.2.17-T HW Score: 61.98%, 52.68 of 85 points Part 6 of 8 Points: 2 of 5 Save The contingency table shows the results of a random sample of former smokers by the number of times they tried to quit smoking before they were habit-free and gender. At a = 0.01, can you conclude that the number of times they tried to quit before they were habit-free is related to gender? Perform the indicated chi-square independence test by completing parts (a) through (e) below. Number of times tried to quit before habit-free Gender 1 2-3 4 or more Male 273 257 150 Female 148 137 79 Which region below is the correct rejection region? OA. X XO OD. X2 2 XO (c) Calculate the test statistic. If convenient, use technology. x2 =(Round to three decimal places as needed.)