An agricultural researcher plants 25 plots with a new variety of corn that is dr

Question

An agricultural researcher plants 25 plots with a new variety of corn that is drought resistant and hence potentially more profitable. The average yield for these plots is = 150 bushels per acre. Assume that the yield per acre for the new variety of corn follows a normal distribution with unknown mean and that a 95% confidence interval for is found to be 150 ± 3.29. Which of the following is true?

A. A test of the hypotheses H0: = 160, Ha: 160 would be rejected at the 0.05 level.

B. All of the answers are correct.

C. A test of the hypotheses H0: = 150, Ha: > 150 would be rejected at the 0.05 level.

D. A test of the hypotheses H0: = 150, Ha: 150 would be rejected at the 0.05 level.

Explanation / Answer

option-A)                       

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