Suppose a simple random sample of size n = 1000 is obtained from a population whose size is N = 2,000,000 and whose population p
roportion with a specified characteristic is p = 0.49 . What is the probability of obtaining x = 520 or more individuals with the characteristic?
2 answers:
Answer:
Step-by-step explanation:
Given data:
random sample size n = 1000
Population size is N - 2,000,000
P = 0.49
We know
Probability for having X =520
sample proportion
Answer:
P(X≥520) =0.02938
Step-by-step explanation:
given,
n = 1000
Population size = N = 2,000,000
Specified characteristic = P = 0.49
Probability of obtaining x = 520
for x = 520
p = 520/1000 = 0.52
P(X≥520) = P(p≥0.52)
P(p≥0.52) =
P(p≥0.52) =
using z-table
P(p≥0.52) = 0.02938
P(X≥520) =0.02938
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