Additional parts to this question.E. Conduct a t-test to determine if there is a mean difference in grapefruit content before and after manure application. Includ p-value for your test statisticF. Construct a 95% confidence interval for your results.G. What is your decision at a 5% significance level?

3. A citrus grower asks an Agrilife agent if the iron (Fe) content of his grapefruits could be affected by the application of feedlot manure to his grooves. The agent plans a simple experiment where he analyzed the Fe content of 15 grapefruits from 5 trees before manure application and another 15 grapefruits from the same trees two months after manure application. Use a t-test to discern if grapefruit Fe content differs between the two soil amendments. Tree ID 1 2 3 4 5 Fe Before 7.7 8.5 7.2 6.3 8. 1 Fe After 8.2 9.0 7.0 6.1 8.2 a. Specify the Ho and HA b. Calculate the mean difference. c. Calculate the standard deviation of the difference. d. Calculate the standard error of the difference. Round to 2 decimal places