Question

problem #4 need a better understanding on part b and part c.

need help solving part C on this question

9677 97名 53.Is 20759276 The oiten at ng current AC) breakdo voltage of on 62 51 53 58 42 54 56 61 59 64 51 54 64 62 51 68 55 55 58 50 56 53 57 55 46 56 53 55 52 47 48 55 57 48 63 57 57 56 53 59 54 52 50 55 60 51 57 59 sulating iquid indicates its dielectric strength. A o ticle gove the accompanying sample obse ations on break do volage ev ofa particular circuit under certa condtions. (a) Construct a boxplot of the dato 40 45 06540 45 665 40 45 06 40 45 50 65 (b) Calculate and interpret s 95% CI for true average breakdown voltage (Round your answers to one decimal place.) Interpret the resuiting interval o we are 95% condent that the true population mean les above ths interval. o we ore 95% condent that this interval does not contain the true population meen. We are 95% conlident that this Inberval contoins the tre population meen o we are 95% coreent that the true population mean les below, this interval Does R opear that a has been precisely estimated? Explain This rterval is eine wide eelative to the scale or the data voies themselves, soit could be argued that the mean has teen precisely ennsted This interval is ute narrow relative to the scale of the data values themselves, so it could be argeed that the mean has sot been precisey estimated This interval is ute narrow relative to the scale of the data values themselives, so it could be argued that the mean has ben precisely estmated This interval is qute wide relalive to the scele of the dala values themselves, so it could be argued that the mean has not been precisely estimated (c) Suppose the investigator believes that virtually all values of breakdown votage are between 40 and 70, what sanglewe wold be appropriate for the 9S、CI tohave a midth of 2 w (so that "is estmated to within 1 w confidence) CRound your answer sp to the nearest whole number 074xts

Answer 1

JN (1.36% s0306) N =