#9

Homework: Section 6.4 Confidence Intervals for Question 9, 6.4.14-T HW Score: 79.55%, 17.5 of 22 points Variance and Part 3 of 4 x Points: 0 of 1 You randomly select and measure the contents of 10 bottles of cough syrup. The results (in fluid ounces) are shown to the right. 4.213 4.296 4.258 4.249 4.188 4.297 4.268 4.243 4.229 4.232 Assume the sample is taken from a normally distributed population. Construct 99% confidence intervals for (a) the population variance of and (b) the population standard deviation o. Interpret the results. (a) The confidence interval for the population variance is ( .000452 , .006147 ). (Round to six decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to six decimal place as needed.) O A. With 1% confidence, it can be said that the population variance is between and B. With 99% confidence, it can be said that the population variance is between .000452 and .006147. O C. With 1% confidence, it can be said that the population variance is less than O D. With 99% confidence, it can be said that the population variance is greater than b) The confidence interval for the population standard deviation is (,) (Round to four decimal places as needed.)