Ophelia O'Brien, VP of Consumer Credit of Credit First Banks (CFB), monitors the default rate on personal loans at the CFB member banks. One of her standards is "no more than 5% of personal loans should be in default." On each Friday, the default rate is calculated for a sample of 500 personal loans. Last Friday's sample contained 30 defaulted loans. Using
$\alpha$ = 0.10, the critical z value is ___.
A) 1.645
B) -1.645
C) 1.28
D) -1.28
E) 2.28

Question

Quizplus · Accepted Answer

The Answer of Ophelia O'Brien, VP of Consumer Credit of Credit First Banks (CFB), monitors the default rate on personal loans at the CFB member banks. One of her standards is "no more than 5% of personal loans should be in default." On each Friday, the default rate is calculated for a sample of 500 personal loans. Last Friday's sample contained 30 defaulted loans. Using
$\alpha$ = 0.10, the critical z value is ___.
A) 1.645
B) -1.645
C) 1.28
D) -1.28
E) 2.28

Ophelia O'Brien, VP of Consumer Credit of Credit First Banks α\alphaα

Ophelia O'Brien, VP of Consumer Credit of Credit First Banks $\alpha$