8.3

A certain chromosome defect occurs in only 1 in190adult Caucasian males. A random sample ofn= 100

adult Caucasian males is to be obtained.

(a)

Doesphave approximately a normal distribution in this case? Explain. (Select all that apply.)

the sampling distribution ofpis approximately normal

the sampling distribution ofpis not approximately normal

npis less than 10

npequals 10

npis greater than 10

n(1p) is less than 10

n(1p) equals 10

n(1p) is greater than 10

(b)

What is the smallest value ofnfor which the sampling distribution ofpis approximately normal?

n=

adult Caucasian males