Can someone check my work? A random sample of 11 fields of spring wheat has a mean yield of 20.2 bushels per acre and standard deviation of 5.19 bushels per acre. Determine the 99% confidence interval for the true mean yield. Assume the population is approximately normal. : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Construct the 99% confidence interval. Round to 1 decimal place For the confidence interval I got 3.169 and the confidence interval I got 15.2 lower 25.2 upper

Can someone check my work? A random sample of 11 fields of spring wheat has a mean yield of 20.2 bushels per acre and standard deviation of 5.19 bushels per acre. Determine the 99% confidence interval for the true mean yield. Assume the population is approximately normal. : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Construct the 99% confidence interval. Round to 1 decimal place For the confidence interval I got 3.169 and the confidence interval I got 15.2 lower 25.2 upper