The population mean is $51,300 and the population standard deviation is $5,000. When the sample size is n=20 , there is a .3472 probability of obtaining a sample mean within +/- $500 of the population mean. Use z-table.
a. What is the probability that the sample mean is within $500 of the population mean if a sample of size 40 is used (to 4 decimals)?
b. What is the probability that the sample mean is within $500 of the population mean if a sample of size 80 is used (to 4 decimals)?
The population mean is $51,300 and the population standard deviation is $5,000. When the sample size...
In the EA sampling problem, the population mean is $51,200 and the population standard deviation is $5,000. When the sample size is n 0.4176 probability of obtaining a sample mean within ±$500 of the population mean. Use z-table a. What is the probability that the sample mean is within $500 of the population mean if a sample of size 60 is used to 4 decimals)? b. What is the probability that the sample mean is within $500 of the population mean if...
In the EAI sampling problem, the population mean is $51,700 and the population standard deviation is $5,000. When the sample size is n = 20, there is a 0.4085 probability of obtaining a sample mean within +/- $600 of the population mean. Use z-table. What is the probability that the sample mean is within $600 of the population mean if a sample of size 40 is used (to 4 decimals)? What is the probability that the sample mean is within...
In the EAI sampling problem, the population mean is $51,400 and the population standard deviation is $5,000. When the sample size is n = 30, there is a 0.4161 probability of obtaining a sample mean within +/- $500 of the population mean. Use z-table. What is the probability that the sample mean is within $500 of the population mean if a sample of size 60 is used (to 4 decimals)? What is the probability that the sample mean is within...
In the EAI sampling problem, the population mean is $51, 100 and the population standard deviation is $4,000. When the sample size is n 20, there is a 0.4238 probability of obtaining a sample mean within ±$500 of the population mean. Use z-table. a. What is the probability that the sample mean is within $500 of the population mean if a sample of size 40 is used (to 4 decimals)? b. What is the probability that the sample mean is within $500...
a. What is the probability that the sample mean is within $600 of the population mean if a sample of size 40 is used (to 4 decimals)? b. What is the probability that the sample mean is within $600 of the population mean if a sample of size 80 is used (to 4 decimals)? In the EAI sampling problem, the population mean is $51,200 and the population standard deviation is $4,000. When the sample size is n 20, there is...
a. What is the probability that the sample mean is within $500 of the population mean if a sample of size 60 is used (to 4 decimals)? b. What is the probability that the sample mean is within $500 of the population mean if a sample of size 120 is used (to 4 decimals)? In the EAI sampling problem, the population mean is $51,800 and the population standard deviation is $4,000. When the sample size is n-30, there is a...
In the EAI sampling problem, the population mean is $51,400 and the population standard deviation is $4,000. When the sample size is n = 20, there is a 0.4972 probability of obtaining a sample mean within ±$600 of the population mean. Use z-table. a. What is the probability that the sample mean is within $600 of the population mean if a sample of size 40 is used (to 4 decimals)? b. What is the probability that the sample mean is within $600...
Video A population has a mean of 200 and a standard deviation of 80 . Suppose a sample of size 100 is selected and is used to estimate μ. Use z-table. a. What is the probability that the sample mean will be within +9 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) b. What is the probablity that the sample mean will be within 13 of the population mean (to 4...
In the EAI sampling problem, the population mean is $51,800 and the population standard deviation is $4,000. When the sample size is n=30, there is a 0.5064 probability of obtaining a sample mean within ±$500 of the population mean. Use z-table. a. What is the probability that the sample mean is within $500 of the population mean if a sample of size 60 is used (to 4 decimals)? b. What is the probability that the sample mean is within $500 of the...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample of size 10 is selected and x̅ is used to estimate . Use z-table. a. What is the probability that the sample mean will be within +/-4 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +/- 13of the population mean (to 4 decimals)?