2) One would expect that averages taken from large samples would be statistically near the population mean.

	a.	TRUE
	b.	FALSE

3) The fact that values such as sample averages and sample proportions will be different from sample to sample is an example of

	a.	standard deviation
	b.	population proportions
	c.	sampling variability
	d.	sampling distributions

4) The "standard error of the sample mean" is another name for

	a.	The population standard deviation
	b.	The sample standard deviation
	c.	The standard deviation of the x-bar curve
	d.	Human error in the sampling process

5) A normally distributed population has a mean of 98.33 and a standard deviation of 0.40. Determine the sample mean at the 80th percentile mark for samples of size 88. Round to the nearest hundredth

6) Suppose a sample of 109 healthy adult human body temperatures is taken from a population with a standard deviation of 0.5 degrees Fahrenheit. What would be the sampling deviation of the sample mean? Round to the nearest thousandth

7) The weights of 9 year old male children are normally distributed population with a mean of 75 pounds and a standard deviation of 16 pounds. Determine the probability that a random sample of 28 such children has an average less than 77 pounds. Round to four decimal places.

10) At a certain restaurant in Chicago, the average time it takes a person to eat a nice dinner is 50 minutes with a standard deviation of 13 minutes. These times are known to be normally distributed. To Four decimal places, what is the probability a random diner will finish dinner in more than 61 minutes?