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Posted: **Sun Sep 05, 2021 5:06 pm**

: Mike Believes That The Average Duration Of A Movie Is Equal To 150 Minutes Stephanie Does Not Agree With Mike She Coll 1 (147.7 KiB) Viewed 179 times

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: Mike Believes That The Average Duration Of A Movie Is Equal To 150 Minutes Stephanie Does Not Agree With Mike She Coll 2 (20.44 KiB) Viewed 179 times

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: Mike Believes That The Average Duration Of A Movie Is Equal To 150 Minutes Stephanie Does Not Agree With Mike She Coll 3 (81.4 KiB) Viewed 179 times

Mike believes that the average duration of a movie is equal to 150 minutes. Stephanie does not agree with Mike. She collected sample data of five movies and the durations of these movies are shown as follows. Assume the distribution of movie time follows normal distribution. According to the information, answer the following two questions. 165 145 175 160 172
Calculate the test statistic. Keep 3 decimals
At a = 0.10, what is the critical value? Keep 3 decimals. For one-tailed test, report the actual critical value (either positive or negative); for two-tailed test, report the positive critical value only.