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Showing of 10 Questions
No. & Date AskedQuestion
# 948 :: 4/29/12
Question 948 has been Answered
It is important for airlines to know the approximate total weight of the baggage carried on each airplane. An airline researcher believes that the mea. . .

1-sample Z-test

# 845 :: 3/2/10
Question 845 has been Answered
Dole Pineapple, Inc., is concerned that the 16-ounce can of sliced pineapple is being overfilled. Assume the standard deviation of the process is .03. . .

1-sample t-test, 1-sample Z-test

# 844 :: 3/2/10
Question 844 has been Answered
A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on the average, 10 pounds the first two weeks. . .

1-sample t-test, 1-sample Z-test

# 743 :: 6/6/09
Question 743 has been Answered
Assume you have the following data: Ho: u = 2,450, S = 400, n = 100, and X = 2,300. Conduct a hypothesis test at the .01 significance level. **If the. . .

1-sample Z-test

# 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 two-tailed hypothesis test at the .05 significance level.. . .

1-sample Z-test

# 736 :: 5/28/09
Question 736 has been Answered
A student heard that the average household watches 26.4 hours of t.v. per week, with a stand.dev. of 2.3 hours. He decided to run his own experiment . . .

1-sample Z-test

# 705 :: 4/27/09
THIS QUESTION IS NO LONGER AVAILABLE. . .

1-sample Z-test

# 686 :: 4/18/09
Question 686 has been Answered
A label on a container of orange juice claims that the orange juice contains an average of 2 grams of fat with standard deviation of 1.5 grams. A cons. . .

1-sample Z-test

# 574 :: 1/14/09
Question 574 has been Answered
Assume you have the following data: Ho mu = 200, s = 30, n = 64, and x-bar = 218. Conduct a hypothesis test at the .05 significance level. Assum. . .

1-sample t-test, 1-sample Z-test

# 563 :: 12/19/08
Question 563 has been Answered
A vinyl siding company claims that the mean time to install siding on a medium-size house is at most 20 hours with a standard deviation of 3.7 hours. . . .

1-sample Z-test, 1-sample t-test