suppose the mean scores of a random sample of 230 bread loafs which there are 125 guests attending. If the standard deviation of the given guests attending is 20.3 and its sample comes from an...

suppose the mean scores of a random sample of 230 bread loafs which there are 125 guests attending. If the standard deviation of the given guests attending is 20.3 and its sample comes from an approxiamtely normal population,
find the point and interval estimate of the population mean and apply the normal curve concept in computing the interval estimate. use 98% confidence level