Suppose a researcher is interested in understanding the variation in the price of store brand milk. a random sample of 36 grocer
y stores is selected from a population and the mean price of store brand milk is calculated. the sample mean is $3.13 with a standard deviation of $0.23. construct a 99% confidence interval to estimate the population mean.
The are of a square is determined by squaring the side. And the length will hence, be determined by square rooting the area. ∴ length of this square is = √84 = 9.165