Mathematics, 06.03.2020 22:05, swelch2010

Eighty-one random people were surveyed about the time it takes to commute to work in the morning. The standard deviation of the simple random sample is 2.3 minutes. The test statistic for the sample is 105.8. Find the critical values, using a significance level of 0.10, needed to test a claim that the standard deviation of all commute times is equal to 2.0 minutes. State the initial conclusion.

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Eighty-one random people were surveyed about the time it takes to commute to work in the morning. Th...