Let x denote the time (in minutes) that it takes a fifth grade student to read a certain passage Suppose that the mean value and standard deviation of the x distribution are 2 minutes and 0 8 minutes, respectively a If is the sample mean time for a random sample of n 9 students, where is the distri...

a The x distribution is centered at x 2 minutes and the standard deviation of the b In eac ...

Let x denote the time (in minutes) that it takes a fifth- grade student to read a

Question:

Let x denote the time (in minutes) that it takes a fifth- grade student to read a certain passage. Suppose that the mean value and standard deviation of the x are μ = 2 minutes and σ = 0.8 minutes, respectively.
a. If is the sample mean time for a random sample of n = 9 students, where is the centered, and what is the standard deviation of the Repeat Part (a) for a sample of size of n = 20 and again for a sample of size n = 100. How do the centers and spreads of the three distributions compare to one another? Which sample size would be most likely to result in an value close to μ, and why?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...