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Question: A random sample of 100 households, from the set of all households containing two or more members in a given geographical area, is selected and their television viewing habits are monitored for six months. A random selection of 50 of the households is sent a brochure each week advertising a certain program. The purpose of the study is to determine whether there is any relationship between exposure to the brochure and whether or not this program is watched.
a) Identify suitable response and predictor variables.
b) If a relationship is found, can this be claimed to be a cause-effect relationship? Explain why or why not.
the average length of stay at a local hospital is 4.9 days. assuming a population standard deviation of 3.5 days what
According to Fortune, 90% of endangered species depend on forests for the habitat they provide. If 30% of endangered species are in critical danger.
Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What is the probability that a randomly selected individual has a diastolic blood pressure less than 90?
A 2005 study found that 202 women held board seats out of a total of 1,195 seats in the Fortune 100 companies. A 2003 study found that 779 women held board seats out of a total of 5,727 seats in the Fortune 500 companies.
What other summaries of the mutual fund's rate of return are of importance to a person selecting a retirement plan?
A social worker conducted an 8-week assertiveness training workshop. Afterward, the 14 clients took the Door Manifest Assertiveness Test.
Find a peer-reviewed article that provides an example of a study where the researchers utilized a one sample chi-square OR a two sample chi-square. Briefly describe the study and discuss its findings in your own words.
if the alpha level is changed from a .05 to a .01a. what happens to the boundaries for the critical region?b. what
between quarterly audits a company checks its accounting procedures to detect problems before they become serious. the
In his management information systems textbook, Professor David Kroenke raises an interesting point:“If 98% of our market has Internet access, do we have a responsibility to provide non-Internet materials to that other 2%?Suppose that 98% of the cust..
You work for M-Global's Boston office. As project manager for the construction of a small strip shopping center, you have had delays about halfway through the project because of bad weather.
a radio manufacturer claims that 65 of teenagers 13 to 16 years old have their own portable radios. a researcher wishes
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