Tho nnnual eamings of 12 randomly selected computer software engineers have a sample standard deviation of $3720. Assume the sample is from a normally diatibutiec populasican. Construct a confidence interval for the population variance σ2 and the population standard deviation σ. Use a 99% level of confidence. Intorpret the resuits What is the corfidence inierval for the papulation variance σ2 ? (Round to the nearest integer as needed.)