Data on pull-off force (pounds) for connectors used in an automobile engine application are as follows: 79.6 75.1 78.2 74.1 73.9 75.0 77.6 77.3 73.8 74.6 75.5 74.0 74.7 75.9 72.4 73.8 74.2 78.1 75.4 76.3 75.3 76.2 74.9 78.0 75.1 76.8 if necessary, round all intermediate calculations to four decimal places (e. g. 12.3456).

(a) calculate a point estimate of the mean pull-off force of all connectors in the population (round the answer to four decimal places (e. g. 90.
(b) calculate a point estimate of the pull-off force value that separates the weakest 50% of the connectors in the population from the strongest 50%.(c) calculate the point estimate of the population variance.(d) calculate the point estimate of the population standard deviation.(e) calculate the standard error of the point estimate found in part () calculate a point estimate of the proportion of all connectors in the population whose pull-off force is less than 73 pounds.