A health club annually surveys its members. Last year, 33 of the ...

[sabina]

A health club annually surveys its members. Last year, 33 of the members said they use the treadmill at least four times a week. How large a sample should be selected this year to estimate the percentage of members who use the treadmill at least four times a week? The estimate is desired to have a margin of error of 5 with a 95 level of confidence.

Question 2

Which of the following is a valid objective function for a linear programming problem?
 a. Max 5xy
  b. Min 4x + 3y + (2/3)z
  c. Max 5x2 + 6y2
  d. Min (x1 + x2)/x3

[gasdhashg]

Answer to Question 1

340

Answer to Question 2

B