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MicarriHarris6122
15.07.2019 •
Mathematics
Based upon a smaller sample of only 170 st. paulites, what is the probability that the sample proportion will be within of the population proportion (to 4 decimals). probability
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Ответ:
Part a) :
Suppose you select a sample of 450 complaints involving new car dealers. Show the sampling distribution of (to 4 decimals).
Population proportion = 0.75
sample size. n = 450
Therefore, the sampling distribution has a proportion of 0.75 and a standard error of 0.0204.
Part b) :
Based upon a sample of 450 complaints, what is the probability that the sample proportion will be within .04 of the population proportion (to 4 decimals)?
The probability that the sample proportion will be within 0.04 of the population proportion is given by:
Therefore, the probability that the sample proportion will be within .04 of the population proportion is 0.9501.
Part C:
Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of (to 4 decimals).
Population proportion = 0.75
sample size. n = 200
Therefore, the sampling distribution has a proportion of 0.75 and a standard error of 0.0306.
Part D):
Based upon the smaller sample of only 200 complaints, what is the probability that the sample proportion will be within .04 of the population proportion (to 4 decimals)?
The probability that the sample proportion will be within 0.04 of the population proportion is given by:
Therefore, the probability that the sample proportion will be within .04 of the population proportion is 0.8086.
Ответ:
8.1% is the exact interest rate