Refer to the accompanying TI-83/84 Plus calculator display of a 95% confidence interval. The sample display results from using
a simple random sample of the amounts of tar (in milligrams) in cigarettes that are all king size, nonfiltered, nonmenthol, and non-light. Express the confidence interval in the format of x overbarplus or minusE. ZInterval (21.182,23.958) x overbarequals22.57 nequals25 The confidence interval is nothingplus or minus nothing.
Since Michelle (he ? ) has 11/12 quarts of paint, and need 1/6 per quart to paint, we do 11/12 / 1/6 = 11/2, or 5.5. We cannot paint .5 of a block, so Michelle can only paint 5 quarts.