Suppose that you want to test the claim that the mean weight of male harbor seals is 300 pounds. You collect a sample of 90 seals and find that the...

Suppose that you want to test the claim that the mean weight of male harbor seals is 300 pounds. You collect a sample of 90 seals and find that the mean weight in the sample is 308 pounds.The standard deviation is 23. Using significance level of .01 test the null hypothesis using 5-step procedure. H0: µ=300 using the 5-step procedure.