It Is Claimed That in a Bushel of Peaches, Less $\alpha$

Multiple Choice

It is claimed that in a bushel of peaches, less than ten percent are defective. A sample of 400 peaches is examined and 50 are found to be defective. What is the critical value for $\alpha$ = 0.025?

A) 1.96
B) $\pm$ 1.65
C) -1.96
D) -1.65