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| No. & Date Asked | Question |
# 741 :: 6/6/09
 |
Assume you have the following data: Ho: u = 200, S = 30, n = 64, and X = 218. Conduct a hypothesis test at the .05 significance level.. . .
1-sample Z-test |
# 500 :: 11/7/08
 |
In a recent year grade 8 Washington State public school students taking a mathematics assessment test had a mean score of 276.1 with a standard deviat. . .
Percent Score,
Area between,
Z-Score |
# 388 :: 9/17/08
 |
In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made. . .
2-proportion test,
Binomial Probability,
Normal Approximation |
# 333 :: 8/10/08
 |
A woman sells an average of 300 books per month, with a standard deviation of 50. Over the next ten years, how many months will she sell more than 375. . .
Z-Score |
# 145 :: 4/8/08
 |
Will the t statistics calculated from 4 observations valid?. . .
t-statistic,
t-distribution,
Small Sample |
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