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Use factoring to solve the problem.
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
Revenue is the product of the price p and the demand.
a) Factor out the price on the right hand side of the formula
b) What is an expression for the monthly demand?
c) What is the monthly demand for this pool when the price is $3000
d) At what price will the revenue be maximized. Approximately how many pools will be sold monthly at this price?
e) What is the approximate maximum revenue?
Suppose that you wish to perform a nonparametric test for a difference among the medians of three or more independent populations. Which of these tests would be appropriate?
Which statement is true for a statistical study?
Thus, the first question he examines is as follows: Is there a difference in the number of points students earned on their educational statistics pretests and posttests?
The Stroop task is when color words are printed in the wrong color; for example, the word red might be printed in the color blue.
Sample mean is 12.2 days and sample standard deviation is 10 days. How many personnel files would director have to choose to evaluate to within 2 days with 99% confidence interval?
Use a two proportion z-test to perform the required hypothesis test. State the conclusion.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
At the .025 significance level, can we conclude that less than 88 percent of the orders are delivered in less than 10 minutes?
Examining more than one independent variable. Would using several t-tests be appropriate test to use? If not, what would appropriate test be and why?
How do you solve this problem: a researcher conducted a study of the access speed of 50 hard drives and concluded that his maximum error of estimate was 24.
In a goodness-of-fit test where the sample size is 200, there are 5 categories, and the significant level in .05. The critical value of X2 is.
Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. (Round your answer to two decimal places.)
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