Problem 1e In this question you are to use StatCrunch to construct a 98% confidence interval estimate for the true population proportion of Variable 1's customers that have the attribute represented by the "1" code., based on the 20 data values you created for Variable 1 in your survey. Copy and paste the StatCrunch Confidence Interval window (which displays the answer) to your Word solutions file under the subheading Problem 1e. Under this window, in the Word solutions document, type in the confidence interval computed. Problem 1f Referring to Problem le above, use StatCrunch to find the minimum number of customers that must be sampled in order for the 98% confidence interval estimate to be within 5% of the true population proportion. It is assumed that you have no preliminary estimate of the true population proportion. Copy and paste the StatCrunch window (which displays the answer) to your Word solutions file under the subheading Problem 1f. Under this window, in the Word solutions document, type in the required minimum sample size. Problem 1g At a 1% level of significance, you are to use StatCrunch to create and conduct a test of hypothesis involving the population mean for Variable 4 in your survey. Create a left tailed test where you specify the hypothesized mean (feel free to specify any value for the population claim that makes sense given your data). In your Word solution file, under a subheading entitled Problem 1g, display all the steps using the "4 step P-value Approach". Copy and paste the Hypothesis Test Results window (that displays the correct test statistic and P-value) from StatCrunch to your Word solutions file under Step 2 of the test.