SAT, 07.12.2021 03:50, odalyarreola18

A house cleaning service claims that it can clean a four-bedroom house in less than 2 hours. A sample of n = 36 houses is taken and the sample mean is found to be 1. 97 hours and the sample standard deviation is found to be 0. 1 hours. Using a 0. 05 level of significance the correct conclusion is.

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