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Need help for the coding using the R Markdown in R Studio for question2 and question2. Please provide a detailed solution with an original R code, outputs and a clear statement of the final answer.First, verify by typing out the terms in the appropriate formulas for the t-statistic and the confidence limits that you and R agree about how these should be calculated. For instance, your R code should be structured the way the Excel commands for confidence limits in Lecture 2 were structured. You should be able to obtain the same three numbers that R printed above. 2. Next, display a histogram for EARNINGS and then for the natural log of EARNINGS; you can simply replace EARNINGS with log(EARNINGS) to do this. Which of the two more closely resembles the normal distribution? How would you interpret this finding? 2. Next, we would like to look for differences in EARNINGS by various groups. The data set includes 250 men (MALE==1 or FEMALE==0) and 250 women (MALE=-0 or FEMALE=-1). Test the hypothesis that the population mean earnings are the same for men and women, using this sample. Use the assumption that the variance of EARNINGS is the same for men and women. Interpret the result of your test. Does it seem reasonable to assume that the two variances are equal?

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