Find out the cut-off value for a t-test
Please explain the process of how you find out the cut-off value for a t-test(t critical) and F test (F critical)? Look up the cutoff value for a t-test with df=15, p=.05 with a one-tailed test.
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A study of high-crime locations in Miami, Florida, was conducted. The number of crimes in each of eight sample areas throughout a one-year period was recorded. Then a neighbourhood watch program was inaugurated.
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Perform appropriate t-test to compare the mean systolic blood pressure between two populations using ?=0.05. You may suppose that the variances of two populations are equal. What do you conclude?
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