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5 Questions returned
No. & Date AskedQuestion
# 344 :: 8/14/08
Question 344 has been Answered
Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using . . .

Standard Deviation, z-test, Normally Distributed, Homogeneity of Variance

# 276 :: 7/11/08
Question 276 has been Answered
Why is population shape of concern when estimating a mean? What does sample size have to do with it?. . .

Normally Distributed

# 215 :: 6/3/08
Question 215 has been Answered
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assum. . .

Standard Normal Curve, Confidence Intervals, Standard Deviation, Normally Distributed

# 197 :: 5/15/08
Question 197 has been Answered
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assum. . .

Normally Distributed, Standard Deviation, Margin of Error, Sample Size

# 14 :: 10/23/07
Question 14 has been Answered
What percent of the time should this occur? (Z-Score) ?. . .

Z-Score, Normally Distributed, Standard Deviation, Normal Curve