79.9 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 72.3 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 leg. 12.3456). la} Calculate a point estimate of the mean pulloffforce of all connectors in the population [Round the answer to four decimal places leg. 90.2353l.l lb) Calculate a point estimate of the pulloff force value that separates the weakest 50% of the connectors in the population from the strongest 50% (Express the answer to two decimal place leg. 90.15).) lc} Calculate the point estimate of the population variance [Round the answer to three decimal places leg. 3.567).} ld) Calculate the point estimate of the population standard deviation {Round the answer to two decimal places leg. 1.23).) le) Calculate the standard error of the point estimate found in part la) {Round the answer to two decimal places leg. 1.23).} lfl Calculate a point estimate of the proportion of all connectors in the population whose pulloffforce is less than 73 pounds [Round the answer to three decimal places leg. 0.123).]