In a large population, 92% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
sample proportion computed. What is the mean and standard deviation of the sampling distribution of the sample proportions
1 answer:
Answer:
the mean and the standard deviation is 0.92 and 0.01808 respectively
Step-by-step explanation:
The computation of the mean and the standard deviation is shown below:
The mean is 0.92
And, the standard deviation is
= √0.92 × (1 - 0.92) ÷ √225
= √0.92 × 0.08 ÷ √225
= √0.0736 ÷ √225
= √3.27
= 0.01808
Hence, the mean and the standard deviation is 0.92 and 0.01808 respectively
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