Out of a sample of 250 women's blouses, 10 were rejected because of a missing button. How many blouses would you expect to have a missing button in a run of 600 shirts?
A) 15
B) 24
C) 20
D) 25

Question

Quizplus · Accepted Answer

We can use proportions to solve this problem.

Proportion of blouses with missing button in the sample:

10/250 = 0.04

Proportion of blouses with missing button in the population:

Let x be the number of blouses with missing button in the run of 600 shirts.

x/600 = 0.04

Solving for x:

x = 0.04 * 600

x = 24

Therefore, we would expect 24 blouses to have a missing button in a run of 600 shirts. The best choice is B.

Out of a Sample of 250 Women's Blouses, 10 Were