Given that, the standard deviation of the mean for the sampling
distribution of random samples of size n = 36 from a large
population is 2. That is,
Therefore, the population standard deviation
We want to find, the sample size be to decrease the standard deviatiom to 1.2
Required sample size is 100
7. The standard deviation of the mean for the sampling distribution of random samples of size...
11. If the standard deviation of the mean for the sampling distribution of random samples of size 36 from a large or infinite population is 2, how large must the sample size become if the standard deviation is to be reduced to 1.2? Show work. (8 points)
If the standard deviation of the mean for the sampling distribution of random samples of size 49 from a large or Infinite population is become if the standard deviation is to be reduced to 5257 how large must the sample size Gradebook Sear The sample se must become see score Enter your answer in the answer box to search
If standard deviation ?n=3 for the sampling distribution of random samples of size 81 from a large population. What sample size (drawn from the same population) would have standard deviation ?n=2.7? 27 100 108 73
Find the mean of the sampling distribution for of samples of size n = 36, when the population mean is 129.7 and and population standard deviation is 29.1. 129.7 29.1 216 4.85 625
Random samples of size 36 are taken from a large population whose mean is 120 and standard deviation is 39. The mean and standard error of the sampling distribution ofsample mean, respectively, are:
A population has a mean of 30 and a standard deviation of 9. If samples of size 36 are collected, find the mean and standard deviation of the sampling distribution. The mean of the sampling distribution is and the standard error is A population has a mean of 30 and a standard deviation of 9. If samples of size 36 are collected, find the mean and standard deviation of the sampling distribution. The mean of the sampling distribution is and...
For each of the following, find the mean and standard deviation of the sampling distribution of the sample mean. State if the sampling distribution is normal, approximately normal, or unknown. a. The population is skewed right with a mean of 4 and a standard deviation of 6. Many samples of size 100 are taken. b. The population is normal with a mean of 61 and a standard deviation of 9. Many samples of size 900 are taken. c. The population...
7. If the standard deviation of the mean for the sampl size 64 from a large or infinite population is 2.5, how large must the sample size become if the standard deviaiǐou is to be rexl1ldTYl to 0.87
8 pts Question 2 U Find the standard deviation of the sampling distribution for of samples of size n = 49, when the source distribution's population mean is 101 and and population standard deviation is 15.6 101 15.6 O 6,47 14.4 2.23 Question 3 8 pts The weights of people in a certain population are normally distributed with a mean of 148 lb and a standard deviation of 191b. Suppose that we select samples of size 40. Determine the mean...
If random samples of size n = 36 are drawn from a nonnormal population with finite mean = 75 and standard deviation = 15, then the sampling distribution of the sample mean is approximately normally distributed with mean = 75 and standard deviation = 2.5. Select one: O a. False O b. True