(a) State the null and alternative hypotheses: (Type "mu" for the symbol , e.g. mu 1 for the mean is greater than 1, mu 1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1) : :
(b) Find the test statistic, t =
(c) Answer the question: Does this sample provide evidence that Variety A had a higher yield than Variety B? (Use a 5% level of significance) (Type: Yes or No)
You can earn partial credit on this problem.