exam equals 45 minutes. A Type I error would occur if the professor concludes that the average exam time is Answer not equal to 45 minutes when, in reality, the average time equals 45 minutes. Comments Correct!! Max Score: 4 Actual Score: 4 Question 6 YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 6 minutes. A random sample of 40 people watched online videos that averaged 6.6 minutes in length. It is believed that the population standard deviation for the length of online videos is 1.7 minutes. YouTube would like to set α = 0.05. The critical value for this hypothesis test would be ________. Answer 1.645 Comments Correct!! Max Score: 4 Actual Score: 4 Question 7 If the hypothesis test is used in a quality control setting, the alternative hypothesis takes the stance that the process is not behaving as it should and needs some sort of attention Answer True Comments
Correct!! Max Score: 4 Actual Score: 4 Question 8 CoStar would like to test if the vacancy rate for warehouse stores is more than 8%. The correct hypothesis statement to test for this vacancy rate would be Answer H0: π ≤ 0.08; H1: π > 0.08.
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- Fall '12
- Standard Deviation, Null hypothesis, Statistical hypothesis testing, Xbox