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No. & Date Asked  Question 

# 541 :: 12/9/08

A stockbroker at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6 percent with a standard deviation of . . .
Ftest,
Homogeneity of Variance,
Unequal Variances,
Levine test 
# 527 :: 11/28/08

A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $3. . .
Homogeneity of Variance,
Ftest,
Levine test 
# 526 :: 11/28/08

To test the hypothesis that students who finish an exam first get better grades, Professor Hardtack kept track of the order in which papers were hande. . .
2sample ttest,
Homogeneity of Variance,
Equal Variances,
Ftest,
Levine test 
# 344 :: 8/14/08

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,
ztest,
Normally Distributed,
Homogeneity of Variance 