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In the particular market there are three commercial television stations, each with its own evening news program from 6:00 to 6:30 P.M. According to the report in morning's local newspaper, random sample of 150 viewers last night revealed 53 watched news on WNAE, 64 watched on WRRN, and 33 on WSPD. At .05 significance level, is there a difference in proportion of viewers watching three channels?
Using WSJ or IBD look up the following stocks: General Electric, General Motors, Microsoft and Intel and answer the following questions for each stock. You may have to refer to several issues of your newspaper for all of the information if the pap..
What is a Wilcoxon-Whitney Test and when is it used? I am not sure when to use the Wilcoxon-Whitney Test and what it is testing.
The manager of the greeting card section of Mazey's department store is considering her order for a particular line of Christmas Cards. Develop the payoff table for this decision situations.
For this same sample of n = 45, find out the width of confidence interval around population mean? Illustrate all work.
Compute the expected number of barrels that will be sol on Saturday. (Answer to Whole numbers)
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were tested for each of the paints.
Find out the sample size raised by mean also standard deviation, a sampling distribution may approach among which of the following values.
If a fair six-sided die is rolled 1200 times, find the probability that an even number will occur at most 620 times.
Arrivals 2011. Will your flight get you to your destination on time? The U.S. Bureau of Transportation Statistics publishes information about airline performance.
In this problem set you will get some practice performing a linear regression analysis. If you use Statdisk or Excel to perform any portion of these analyses, please include the results, label them, and refer to them accordingly in your interpreta..
A final exam in Math 157 is normally distributed and has a mean of 75 with a standard deviation of 12. If 36 students are randomly selected, find the probability that the mean of their test scores is greater than 70.
For a sample with standard deviation of 10, a score of X = 44 corresponds to z-score of 0.50. Based on this info, determine the sample mean?
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