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A market researcher gives a presentation to a music industry executive. After considering the results of a test market examining whether or not lowering the price of in-store CDs will lower the number of illicit downloads of the same music, the executive claims: "The test market was conducted in eight cities. In two of the cities, lowering the price did not decrease illicit downloading. Therefore, lowering the price does not decrease this behavior and we should not decide to lower prices based on this research." Comment on the executive's conclusion. What type of inference is being made? Will the decision not to lower prices be a good one.
Find the probability that the driver was intoxicated or the pedestrian was not intoxicated?
Calculate the expected value and standard deviation of the value.
Which are likely to be independent events? For those you think are not, suggest reasons why.
It has been estimated that 30% of all farms are family-owned. In a sample of 12 farms, what is the probability that exactly three farms are family owned?
Design a Linear programming problem for the flair Furniture Company and find the combination of tables and chairs that the company must produce to maximize profits.
A random sample of 48 managers of large hotels has mean X‾= 5.91. The null hypothesis for the researcher's test is?
To find the 95 percent confidence interval for the true population mean. From the results below, is it true that 95% of the sample means will fall
Dividend is expected to grow 7% a year for next 3 years and then at 5% a year after that. Determine the expected dividend per share for each of the next five years?
Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error?
Test the proportions of yellow fire trucks have a significantly lower accident rate.
A school tracks the absences of pupils as part of a flu surveillance system. Regular reporting of absences among 25 students in grade 1 are taken, and based on these data, the long-run proportion of absences under normal conditions is estimated to..
What is the probability that the team wins tonight and that there will be a large crowd at tomorrow's game?
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