Construct and interpret a Confidence Interval to estimate an entire population's Mean The grade point averages for 10 randomly selected college students are listed below. 2.0 3.2 1.8 2.9 0.9 4.0 3.3 2.9 3.6 0.8 Assume grade point averages are normally distributed (that is, have a Normal/Bell-shaped distribution). (a) Find a point estimate x for the population mean. (b) Find the Margin of Error for a 98% confidence interval. You must use the correct critical value from Table VII. (c) Construct a 98% confidence interval for the population mean. (d) Interpret the confidence interval, "We are 98% confident that ...." Cable VII