QUESTION 16 Provide an appropriate response. Round the test statistic to the nearest thousandth. Compute the standardized test statistic, x to test the claim of # 47.6 ifn = 10, s2 = 52.5, and a = 0.01. O 9.926 O 4.919 O 3.276 O 12.008Provide an appropriate response. Assume that the heights of bookcases are normally distributed. A random sample of 16 bookcases in one company have a mean height of 67.5 inches and a standard deviation of 2.4 inches. Construct a 99% confidence interval for the population standard deviation, o. O (1.6, 4.3) O (1.7, 4.1) O (1.7, 4.5) O (1.0, 2.8)