how do you solve

si=.05

5. The mean yield of corn in the United States is reported to be 135 bushels per acre. A survey of 50 randomly selected farmers this year gives a sample mean of 137.4 bushels per acre. Assume that the farmers surveyed are a random sample from the population of all commercial corn growers and that the standard deviation of the yields in this population is a = 10 bushels per acre. 13 there enough evidence that the national mean this year is not 135 bushels per acre? Check any necessary conditions Set up your hypothesis test by specifying the null and alternative hypotheses Calculate the test statistic Find your p-value State your decision to reject or fail to reject. State your conclusion statistically and in the context of the problem. P'y'fi-t'i'ai"