# Question: Refer to the data of Exercise 17 4 If a total

Refer to the data of Exercise 17.4. If a total sample of 100 students is to be taken, determine how many of these should be freshmen and sophomores under each of the following schemes.

a. Proportional allocation

b. Optimum allocation, assuming the stratum population standard deviations are the same as the corresponding sample values

a. Proportional allocation

b. Optimum allocation, assuming the stratum population standard deviations are the same as the corresponding sample values

## Answer to relevant Questions

A mortgage company randomly samples accounts of their time-share customers. State whether each of the following variables is categorical or numerical. If categorical, give the level of measurement. If numerical, is it ...Refer to the data of Exercise 17.6. If a total sample of 135 accounts receivable is to be taken, determine how many of these should be from Division 1 under each of the following schemes. a. Proportional allocation b. ...A union executive wants to estimate the mean value of bonus payments made to a corporation's clerical employees in the first month of a new plan. This corporation has 52 subdivisions, and a simple random sample of 8 of these ...A corporation has a fleet of 480 company cars-100 compact, 180 midsize, and 200 full size. To estimate the overall mean annual repair costs for these cars, a preliminary random sample of 10 cars of each type is selected. The ...Refer to the data of Exercise 17.28. If 40 pages are to be sampled, determine how many sampled pages would be technical under each of the following schemes. In exercise a. Proportional allocation b. Optimum allocation, ...Post your question