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Answered Questions

No. & Date AskedQuestion
# 741 :: 6/6/09
Question 741 has been Answered		 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
Question 500 has been Answered		 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
Question 388 has been Answered		 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
Question 333 has been Answered		 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
Question 145 has been Answered		 Will the t statistics calculated from 4 observations valid?. . .

t-statistic, t-distribution, Small Sample

Showing 5 of 668 Questions View All Questions