Given two independent random samples with the following results:n1=13x‾1=180s1=21   n2=9x‾2=163s2=30 Use this data to find the 99%confidence interval for the true difference between the populationmeans. Assume that the population variances are equal and that thetwo populations are normally distributed.
Step 1 of 3: Find the point estimate that should be used inconstructing the confidence interval.
Step 2 of 3: Find the margin of error to be used in constructingthe confidence interval. Round your answer to six decimalplaces.
Step 3 of 3: Construct the 99%99% confidence interval. Roundyour answers to the nearest whole number.
