thanks, thanks :)

V. SYNTHESIS 1. A population has mean 5.75 and standard deviation of 1.02. a. Random samples of 81 are taken. Find the mean and variance of the sample mean. b. How would the answers to part (a) change if the size of the samples were 25 instead of 81? Directions: Solve the following 1. Compute the mean and standard deviation of the sampling distribution of the sample mean when you plan to a simple random sampling of size 64 from a population with mean 44 and standard deviation 16. 2. Repeat the calculations for #2 using a sample size of 576. Explain the effect of the sample size increase on the mean and standard deviation of the sampling distribution