Nancy Joon, Inc has 1500 employees. A simple random sample of 81 employees was selected, and the individuals in the sample were asked how much they contribute (monthly) to their retirement accounts. The sample mean, , was 150 with a standard deviation, s, of 45.
a. Estimate the standard error of the mean.
b. Develop an approximate 95 confidence interval for the population mean.
Question 2
A measure of the average value of a random variable is called a(n) _____.
a. variance
b. standard deviation
c. expected value
d. None of the answers is correct.
Relatively simple changes in Hox genes control limb formation in tetrapods.
Sample Exercise Prescription for Weight Training: Advanced
Sample Stress Management Program
Selected Natural Products
Free energy diagrams for the simple reaction A ----> B
Selected hormones and their role in energy intake