Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 140 millimeters, and a standard deviation of 8 millimeters. If a random sample of 49 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by more than 1.8 millimeters? Round your answer to four decimal places.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities