explain in detail

The alternating current (AC) breakdown voltage of an insulating liquid indicates its dielectric strength. An article gave the accompanying sample observations on breakdown voltage (kV) of a particular circuit under certain conditions. 62 50 53 58 42 54 55 61 59 64 51 54 64 62 50 68 54 56 58 50 56 50 57 56 46 56 54 55 52 47 48 55 58 49 63 57 57 56 53 59 54 53 51 56 60 50 57 58 Determine the confidence level for each of the following largesample onesided confidence hounds. (Round your answers to the nearest whole number.) l USE SALT (a) Upper bound: )? + 1.04s/3 l:l % (b) Lower bound: E 7 2.335,!(3 l:l % ((3) Upper bound: )7 + 0585.1\"; |:|% Suppose the investigator believes that virtually all values of breakdown voltage are between 40 and 70. What sample size would be appropriate for the 95% CI to have a width of 1 kV (so that pi is estimated to within 0.5 W with 95% confidence)? {Round your answer up to the nearest whole number.) Calculate and interpret a 95% C] for true average breakdown voltage p. (Round your answers to one decimal place.) (| l)