Mathematics, 30.10.2021 07:40 autumnmeadows20
A professor at NCSU wants to test if the elementary school children spend less than 30 minutes per day on homework. The test is to be made at the 1% significance level. A sample of 64 children selected from this school showed that they spend an average of 25.6 minutes per day on home work with a standard deviation of 4 minutes. What is the critical value of z
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A professor at NCSU wants to test if the elementary school children spend less than 30 minutes per d...
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