The teachers in a large local high school want to see if the mean number of students per class for their high school is larger than the mean class size reported by the state. According to state records, the mean class size for all high schools in the state is 29.7 students per class. The teachers want to conduct a significance test at the α = 0.10 significance level of H0: μ = 29.7 versus Ha: μ > 29.7, where µ is the true mean number of students in each class in the high school. The teachers select a random sample of 20 different classes from all of the classes at the high school and calculate the sample mean to be 31.2 students per class with a standard deviation of 2.72 students per class. Using Table B, which of the following is the range the P-value is between? Assume that the conditions are met
The teachers in a large local high school want to see if the
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