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The report "2007 Electronic Monitoring & Surveillance Survey: Many Companies Monitoring, Recording, Videotaping-and Firing-Employees" (American Management Association, 2007) summarized the results of a survey of 304 U.S. businesses. Of these companies, 201 indicated that they monitor employees' web site visits. For purposes of this exercise, assume that it is reasonable to regard this sample as representative of businesses in the United States.
a. Is there sufficient evidence to conclude that more than 60% of U.S. businesses monitor employees' web site visits? Test the appropriate hypotheses using a significance level of .01.
b. Is there sufficient evidence to conclude that a majority of U.S. businesses monitor employees' web site visits? Test the appropriate hypotheses using a significance level of .01.
the 92 million americans of age 50 and over control 50 percent of all discretionary income aarp bulletin march 2008.
Calculate correlation coefficient for these sample data.
1. A distribution of scores is normally distributedwith a mean??= 85and a standard deviation s=4. If one score is randomly sampled fromthe distribution, what is the probability that itwill be greater than 96, between 90 and 97 and less than 88?
What is the probability that the sample mean will be between 48.35 and 55.74? p(48.35
How well material conduct heat matters when designating houses, for example. Conductivity is measured in terms of watts of heat power transmitted per square meter of surface per degree Celsius of temperature difference on the two sides of the mate..
A fast-food franchiser is considering building a restaurant at a certain location. Based on financial analysis, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
what are some of the sources where we can obtain partial probabilities of events for a certain investment problems
Briefly identify and contrast the methods used by the psychoanalytic perspective, the humanistic perspective, and the trait perspective to assess personality.
it is estimated that 3.6 of the general population will live past their 90th birthday. in a graduating class of 733
Find probabilities for the Exactly one of the five individuals is left-handed.- At most one of the five individuals is left-handed.
Let X be the total number of switches that are closed. What is E(X)? or is it impossible to say without further assumptions?
What are the characteristics of the normal curve? What human behavior, trait, or characteristic can you think of that is distributed normally?
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