0 CHO9 11/17/2022 Question 5, 9.2.24-T Part 1 of 5 HW Score: 41.67%, 5 of 12 points Points: 0 of 1 Save K You are the manager of a restaurant for a fast-food franchise. Last month, the mean waiting time at the drive-through window for branches in your geographical region, as measured from the time a customer places an order until the time the customer receives the order, was 3.9 minutes. You select a random sample of 81 orders. The sample mean waiting time is 4.09 minutes, with a sample standard deviation of 0.9 minute. Complete parts (a) and (b) below. a. At the 0.01 level of significance, is there evidence that the population mean waiting time is different from 3.9 minutes? State the null and alternative hypotheses. HO: H VO Hy : H VO (Type integers or decimals.) Clear all Check n example Get more help - O DEC 43 33 tv 5 MacBook AirH09 11/17/2022 Question 3, 9.1.13 Part 1 of 3 HW Score: 41.67%, 5 of 12 points Points: 0 of 1 Save A magazine reported that at the top 50 business schools in a region, students studied an average of 11.9 hours. Set up a hypothesis test to try to prove that the mean number of hours studied at your school is different from the reported 11.9 hour benchmark. Complete parts (a) through (c) below. a. State the null and alternative hypotheses. Choose the correct answer below. O A. Ho: a # 11.9 O B. Ho: H # 11.9 H1: B = 11.9 O C. Ho: H # 11.9 O D. Ho: B # 11.9 H1: X = 11.9 H1 : H = 11.9 Hy : B = 11.9 OE. Ho: 0 # 11.9 OF. HO: H= 11.9 O G. Ho: a = 11.9 OH. Ho: a = 11.9 H1: a = 11.9 H1: X # 11.9 H1: B # 11.9 H1 : a # 11.9 O1. Ho: X = 11.9 O J. Ho: B= 11.9 OK. Ho: H = 11.9 OL. Ho: X # 11.9 H1: X # 11.9 Hy: B # 11.9 H1: H # 11.9 H1 : X = 11.9 Clear all Final check example Get more help O DEC atv 5 MacBook Air11/17/2022 Question 12, 9.4.56-T Part 2 of 9 HW Score: 41.67%, 5 of 12 points Points: 0 of 1 Save K through (d) below. The worldwide market share for a web browser was 20.3% in a recent month. Suppose that a sample of 120 random students at a certain university finds that 30 use the browser. Complete parts (a) a. At the 0.05 level of significance, is there evidence that the market share for the web browser at the university is greater than the worldwide market share of 20.3%? Determine the null and alternative hypotheses. CA. Ho: It SO.203; H,: It > 0.203 X B. Ho: It 2 0.203; H,: It