Mathematics, 10.12.2019 04:31 sabrinaaz
Results of a survey conducted in 15 large cities within the u. s. finds that the average commute time one way to/from work is 25.4 minutes. an executive of chamber of commerce believes that the commute time in her city is less than the amount reported by the survey. she randomly selects 25 commuters from her city and finds the average is 22.1 minutes and the standard deviation is 5.3 minutes. at = 0.10, is her claim supported? (use the traditional method to test the hypothesis).
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