Skillbuilder Applet Exercise simulates taking samples of size 4 from an approximately normal population, where

65.15 and 2.754.

a. Click “1” for “# Samples.” Note the four data values and their mean. Change “slow” to “batch” and take at least 1000 samples using the “500” for “# Samples.”

b. What is the mean for the 1001 sample means?
How close is it to the population mean, ?

c. Compare the sample standard deviation to the population standard deviation, . What is happening to the sample standard deviation?
Compare it with , which is 2.754/4.

d. Does the histogram of sample means have an approximately normal shape?

e. Relate your findings to the SDSM.

Overv Population: Hean 65.15, 3D 2.754 0.15 0.1 0.05 50 55 60 65 70 Bamples 500 905 Batch Suplemen Men - 65.04, SD -1.259 0.3 9.2. 0.1 58 60 62 64 65 68 70 Cument sample 675, 600, 630,670 49364625 404 655 405.865 496 62.25 497,645 49866.5 499 64125 500.66625