From text (3rd ed in parentheses): Chapter 9, Q 54(52), 56(54), Chapter 10 Q 10(9), 42(40), 44(42), 46(44). Also: find a 95% confidence intervals for the standard deviation of the first 20 speed of light measurements on the earlier assignment and a 90% confidence interval for the ratio of the SD of the first 20 divided by the SD of the last 20.