Practice_Exam_7

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Industrial Engineering

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May 11, 2024

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M7: Exam - Requires Respondus LockDown Browser + Webcam Due No due date Points 50 Questions 4 Time Limit 180 Minutes Requires Respondus LockDown Browser Instructions Attempt History Attempt Time Score LATEST Attempt 1 92 minutes 50 out of 50 Score for this quiz: 50 out of 50 Submitted Apr 15 at 6:47pm This attempt took 92 minutes. You may only have the following items when taking an exam: computer, 1-2 pieces of blank scratch paper, a pen/pencil, and a calculator. You may ONLY use the equation sheets that are provided WITHIN the exam. The use of printed versions will be considered a violation of the Academic Integrity Policy. 15 / 15 pts Question 1 You may find the following files helpful throughout the exam: Statistics_Equation_Sheet (https://previous.nursingabc.com/upload/images/Help_file_picture/Statistics_ Standard Normal Table (https://previous.nursingabc.com/upload/images/Help_file_picture/standardn Answer the following questions: This study source was downloaded by 100000881869270 from CourseHero.com on 04-09-2024 20:46:02 GMT -05:00 https://www.coursehero.com/file/206534861/Practice-Exam-7pdf/
Your Answer: a) Define the null and alternative hypothesis for the following. Also, explain what it would mean to make a Type I error and explain what it would mean to make a Type II error. The newspaper in a certain city had a circulation of 15,000 per day in 2010. You believe that the newspaper’s circulation is more than 15,000 today. b) Define the null and alternative hypothesis for the following. Also, explain what it would mean to make a Type I error and explain what it would mean to make a Type II error. A certain website had 3500 hits per month a year ago. You believe that a) H : = 15,000 (null hypothesis) H : > 15,000 (alternative hypothesis) Type I Error : reject H that the mean newspaper circulation was 15,000 per day when circulation was no more than 15,000 per day Type II Error : do not reject H that the mean newspaper circulation was 15,000 per day when the circulation was more than 15,000 b) H : = 3,500 (null hypothesis) H1: < 3,500 (alternative hypothesis) Type I Error : reject H that the website had 3,500 hits per month a year ago when the website had at least 3500 hits per month a year ago Type II Error : do not reject H that the website had 3,500 hits per month a year ago when the website hits per month was less than 3,500 0 1 0 0 0 0 0 This study source was downloaded by 100000881869270 from CourseHero.com on 04-09-2024 20:46:02 GMT -05:00 https://www.coursehero.com/file/206534861/Practice-Exam-7pdf/
a) H : μ=15,000. H :μ>15,000. Type I error: Reject the null hypothesis that the circulation today is 15,000 when the circulation today is no more than 15,000. Type II error: Do not reject the null hypothesis when the circulation is more than 15,000. b) H : μ=3500. H :μ<3500. Type I error: Reject the null hypothesis that the website gets 3500 hits per month when the website actually gets at least 3500 hits per month. Type II error: Do not reject the null hypothesis when the number of hits per month is less than 3500. 0 1 0 1 5 / 5 pts Question 2 You may find the following files helpful throughout the exam: Statistics_Equation_Sheet (https://previous.nursingabc.com/upload/images/Help_file_picture/Statistics_ Standard Normal Table (https://previous.nursingabc.com/upload/images/Help_file_picture/standardn Suppose that we have a problem for which the null and alternative hypothesis are given by: H : μ=322. H :μ≠ 322. 0 1 This study source was downloaded by 100000881869270 from CourseHero.com on 04-09-2024 20:46:02 GMT -05:00 https://www.coursehero.com/file/206534861/Practice-Exam-7pdf/
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