Mathematics, 18.08.2019 01:20 AlaskaAirlines

Last year, the standard deviation of the ages of the students at ua was 1.8 years. recently, a sample of 31 students had a standard deviation of 2.1 years. we are interested in testing to see if there has been a significant change in the standard deviation of the ages of the students at ua. the null hypothesis is

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Last year, the standard deviation of the ages of the students at ua was 1.8 years. recently, a sampl...

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