Module 3 Quiz_ ALY6010 70485 Prob Theory and Intro Stats SEC 07 Fall 2023 CPS [SJO-B-HY]

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2/21/24, 9:59 PM Module 3 Quiz: ALY6010 70485 Prob Theory and Intro Stats SEC 07 Fall 2023 CPS [SJO-B-HY] https://northeastern.instructure.com/courses/160588/quizzes/552272 1/3 Due No due date Points 50 Questions 5 Time Limit None Instructions Attempt History Attempt Time Score LATEST Attempt 1 11 minutes 50 out of 50 Score for this quiz: 50 out of 50 Submitted Nov 27, 2023 at 3:29pm This attempt took 11 minutes.  Do not leave the test before clicking Save and Submit. Module 3 Quiz  Syllabus (https://northeastern.instructure.com/courses/160588/assignments/syllab  Modules (https://northeastern.instructure.com/courses/160588/modules)  Optional Resources (https://northeastern.instructure.com/courses/160588/pages/o  Assignments (https://northeastern.instructure.com/courses/160588/assignments)              

2/21/24, 9:59 PM Module 3 Quiz: ALY6010 70485 Prob Theory and Intro Stats SEC 07 Fall 2023 CPS [SJO-B-HY] https://northeastern.instructure.com/courses/160588/quizzes/552272 2/3 Question 1 10 / 10 pts The mean weight is not equal to 34 ounces. There is not enough evidence to conclude that the mean weight is 34 ounces. Correct! There is not enough evidence to conclude that the mean weight differs from 34 ounces. The mean weight is equal to 34 ounces.  Question 2 10 / 10 pts 2.04, H0 rejected 0.26, H0 not rejected 0.26, H0 rejected Correct! 2.04, H0 not rejected  Question 3 10 / 10 pts A garden supplier claims that its new variety of giant tomato produces fruit with an mean weight of 34 ounces. A test is made of H : μ = 34 versus H : μ ≠ 34. The null hypothesis is not rejected. State the appropriate conclusion. 0 1 A test is made of : versus : . A sample of size n=62 is drawn, and sample mean of 62. The population standard deviation is 27. Compute the value of the test statistic z and determine if H is rejected at the =0.01 level. 0 A report by the Gallup Poll stated that on average a woman contacts her physician 5.8 times a year. A researcher randomly selects 20 women and obtained these data. At α = 0.05, can it be concluded that the average is still 5.8 visits per year? Use the P - value method.

2/21/24, 9:59 PM Module 3 Quiz: ALY6010 70485 Prob Theory and Intro Stats SEC 07 Fall 2023 CPS [SJO-B-HY] https://northeastern.instructure.com/courses/160588/quizzes/552272 3/3 There is not enough information to draw a conclusion. Correct! No. There is enough evidence to reject the claim that the mean number of vists per year is 5.8. Yes. There is not enough evidence to reject the claim that the mean number of vists per year is 5.8.  Question 4 10 / 10 pts No conclusion is possible. Correct! No Yes  Question 5 10 / 10 pts 13.848 and 36.415 Correct! 9.262 and 44.181 13.091 and 35.172 11.524 and 44.314 Quiz Score: 50 out of 50 In a survey of 426 cigarette smokers, 51 of them reported that they have tried hypnosis therapy to try to quit smoking. Can you conclude that less than one-tenth of smokers have tried hypnosis therapy? Use the alpha=0.05 level of significance. A doctor claims that the standard deviation of systolic blood pressure is 12 mmHg. A random sample of 24 patients found a standard deviation of 14 mmHg. Assume the variable is normally distributed. At alpha=0.01, what are the critical χ values? 2

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Module 3 Quiz_ ALY6010 70485 Prob Theory and Intro Stats SEC 07 Fall 2023 CPS [SJO-B-HY]

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