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A two-sample t test is performed with Ha:u1>u2 and a test statistic of t=-1.24 is observed. Draw a sketch of the area corresponding to the p-value, and find the range of the p-value when df=12.
Discuss why the 90% and 99% confidence intervals are different. What would you expect to happen to the confidence interval in part A if the sample size was increased?
Demand for pools. Tropical pools sells an aboveground model for p dollars each. The monthly revenue from the sale of this model is given by..R= -0.08p^2 + 300p
the relationship assumed linear between yield of bourbon y and aging time x was studied by observing yields yi from
a researcher wants to know if the amount of calories in a meal from five different restaurants is different. what type
Classify as independent or dependent samples: The average price of gasoline at ten local stations, and the average price of gasoline at ten stations in another state.
Specification limits for a particular characteristic of a product indicate the values at which the product will operate properly. Assume we have a product with an upper specification limit of 7.25 and a lower specification limit of 4.0. As long as..
The forecast for the third quarter is 3,000 units; the seasonal index for the quarter is 1.05. What are the seasonally adjusted sales for the quarter?
the managing director of a consulting group has the following monthly data on total overhead costs and professional
which of the following is considered a decision variable in the media selection problem of minimizing interview costs
If a manufacturer charges x dollars each for soccer balls, then he can sell 3000 - 150x soccer balls per week. Find a polynomial that represents the revenue for one week.
What is the hourly rate for cars entering the tunnel? Given rate is per minute therefore to get the hourly rate we need to x 60. Hourly rate -= 0.5 x 60 = 30 cars/hour.
A simple random sample of 100 of a certain popular model car in 2003 found that 20 had a certain minor defect in the brakes. A simple random sample of 400 of this model car in 2004 found that 50 had the minor defect in the brakes.
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