Using the project bennye$\_$class.RData that you created in Assignment #$0,$ verify $($using the sum command with the na$.$rm$=$T option$)$ that the sum of the height column is equal to $24354.$

Work through this example on R and then do the following:

$($a$)$ Using the project bennye$\_$class.RData that you created in Assignment #$0,$ find a $93\%$ confidence interval for the average height $($in inches$)$ of a person in this class $($height$).$

$($b$)$ Which of the following statements is true regarding part $($a$)?$