Question
I am struggling with statistics! please help me solve this problem Suppose a simple random sample of size nequals = 75 75 is obtained from
I am struggling with statistics! please help me solve this problem
Suppose a simple random sample of size nequals
=75
75 is obtained from a population whose size is Upper N equals 10 comma 000
N=10,000 and whose population proportion with a specified characteristic is p equals 0.2 .
p=0.2. Complete parts (a) through(c) below.
(a) Describe the sampling distribution of ModifyingAbove p with caret
p.
Choose the phrase that best describes the shape of the sampling distribution below.
A.
Approximately normal because n less than or equals 0.05 Upper N
n0.05N and np left parenthesis 1 minus p right parenthesis less than 10.
np(1p)<10.
B.
Approximately normal because n less than or equals 0.05 Upper N
n0.05N and np left parenthesis 1 minus p right parenthesis greater than or equals 10.
np(1p)10.
C.
Not normal because n less than or equals 0.05 Upper N
n0.05N and np left parenthesis 1 minus p right parenthesis greater than or equals 10.
np(1p)10.
D.
Not normal because n less than or equals 0.05 Upper N
n0.05N and np left parenthesis 1 minus p right parenthesis less than 10.
np(1p)<10.
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