Question 4 Let #1 and #2 denote average densities fortwo different types of brick. Assuming normality of the two density distributions, test: H0:M1u2=0vs.HA:p1u270 Use the following data: m : 9,E1 : 24.72, 31 = 0.55 n2 : 5,52 = 20.89, .92 = 0.55 Forthe following questions, you will need the sampling distribution offl 52. Under our null hypothesis, the difference in sample means will have a 75 distribution with 1) degrees of freedom. Using the Satterthwaite approximation for the degrees of freedom, we can determine 1}. You may use the Desmos calculator (or R script on Canvas) to calculate these degrees of freedom. Question 4e. Two Sample Tests Homework . Unanswered Fill in the Blanks Type your answers in all of the blanks and submit The point estimate for the 95% confidence interval for M1 - M2 is Type your answer here .Round your answer to two decimal places. The margin of error for the 95% confidence interval for M1 - M2 is Type your answer here . Round your answer to two decimal places