Question 8, 6.4.14-T HW Score: 67.89%, 12.9 of 19 = Homework: Sec 6.4 Part 2 of 4 points O Points: 0 of 1 Save Question list K You randomly select and measure the contents of 10 bottles of cough 4.214 4.295 4.253 4.244 4.185 syrup. The results (in fluid ounces) are shown to the right. 4.251 4.265 4.242 4.224 4.237 Assume the sample is taken from a normally distributed population. Construct 98% confidence intervals for (a) the Question 5 population variance of and (b) the population standard deviation o. Interpret the results. O Question 6 (a) The confidence interval for the population variance is ( 0.000365 , 0.003791 ). (Round to six decimal places as needed.) O Question 7 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.) A. With 98% confidence, it can be said that the O B. With 98% confidence, it can be said that the Question 8 population variance is between ] and. population variance is greater than O C. With 2% confidence, it can be said that the O D. With 2% confidence, it can be said that the O Question 9 population variance is less than population variance is between and O Question 10HW Score: 74.14%, 14.09 of 19 E Homework: Sec 6.4 Question 9, 6.4.19-T Part 2 of 4 points O Points: 0 of 1 Save As part of a water quality survey, you test the water hardness in several randomly selected streams. The results are Question list K shown below. Construct a confidence interval for the population variance of and the population standard deviation o. Use a 99% level of confidence. Assume that the population has a normal distribution. Question 7 n = 22 s = 18 grains per gallon Question 8 What is the confidence interval for the population variance o2? O Question 9 ( 164.3 , 846.9 ) (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal places as needed.) O Question 10 O A. With 99% confidence, it can be said that the O B. With 99% confidence, it can be said that the population variance is less than population variance is between and Question 11 O C. With 1% confidence, it can be said that the O D. With 1% confidence, it can be said that the population variance is greater than population variance is between and Question 12 Question 13