Consider a population of 250 with a mean of 55 and a standard deviation equal to 24. What is the probability of obtaining a sample mean of 56 or less with a sample size of 35?
Consider a population of 250 with a mean of 55 and a standard deviation equal to...
Consider a population of 200 with a mean of 60 and a standard deviation equal to 24. What is the probability of obtaining a sample mean of 63 or less from a sample of 40? What is the probability of obtaining a sample mean of 63 or less from a sample of 40? P(x≤63)= (Round to four decimal places as needed.)
Consider a population of 300 with a mean of 50 and a standard deviation equal to 29 What is the probability of obtaining a sample mean of 53 or less from a sample of 45? What is the probability of obtaining a sample mean of 53 or less from a sample of 45? P(`x≤53)=_
Consider a population of 300 with a mean of 65 and a standard deviation equal to 25. What is the probability of obtaining a sample mean of 67 or less from a sample of 40?
Consider a population of 300 with a mean of 50 and a standard deviation equal to 22. What is the probability of obtaining a sample mean of 52 or less from a sample of 40?
In the EAI sampling problem, the population mean is $51,900 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. What is the probability that the sample mean is within $600 of the population mean if a sample of size 40 is used?
For a population with a mean equal to 100 and a standard deviation equal to 35, calculate the standard error of the mean for the following sample sizes. a) 20 b)50 c)80 a) The standard error of the mean for a sample size of 20 is . (Round to two decimal places as needed.) b) The standard error of the mean for a sample size of 50 is . (Round to two decimal places as needed.) c) The standard error...
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 $51,700 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...
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...
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...