We will use 800 simple random samples, each of size 30, from a given population to calculate a series of 92% confidence intervals to estimate. Approximately how many of the 800 intervals will contain the population mean?

	A.	700
	B.	800
	C.	750
	D.	92
	E.	736

2. Which statement about a confidence interval estimate ofUis true?

	A.	Increasing the sample size decreases the error margin.
	B.	Increasing the level of confidence decreases the error margin.
	C.	Decreasing the error margin makes the confidence interval wider.
	D.	Increasing the population mean increases the error margin.

3. The fishing industry is interested in the mean weight of salmon caught by a certain fishing company. From previous years' data, the standard deviation of the weights of salmon caught by this company was approximately 5.5 lb. How large a sample should be taken to be 90% confident that the point estimate is within 2 lb. of the true mean weight?

	A.	24
	B.	25
	C.	23
	D.	20
	E.	21