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The city council of a suburb of Columbus is interested in the level of public support for a new recreation center. A marketing research firm is selected who then selects a simple random sample of 50 adult residents and contacts each to determine whether the resident would be interested in joining this recreation center if it were built. Of these 35 indicated they would be interested in joining the recreation center.
The population of interest is
A. all household in the suburb.B. the 50 residents contacted.C. all adult residents in the suburb.D. the residents in the suburb that support the new recreation center.
Suppose that you are purchasing cases of wine and that periodically you select a test case to determine the adequacy of the bottles' seals. To do this you randomly select and test 3 bottles int he case.
The distribution of 9 ounce bags of a particular bag of potato chips is approximately Normal with a mean of 9.12 ounces and a standard deviation of 0.15 ounces.
If the probability distribution of X is: Determine the expected value of X? Find out the variance of X?
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
Which of the following(s) can be considered (a) variable(s)?
Find out the coefficient of determination, r 2 , and interpret its meaning.
What is the probability that the person will be hospitalized for a drug-related problem, given that the person has received the PMI sheet?
Develop a probability distribution for the number of students in the sample who watch soap operas.
Create a 99% confidence interval for mean overall duration of symptoms in population of individuals who used zinc lozenges.
Compute the standard error of estimate, and interpret its meaning.
A study report in Journal of Small Business Management (1977) concluded that self-employed individuals experience higher job stress than individuals who are not self employed.
One group is given the new drug and the other group is given the standard drug. Data are recorded on the effects of each drug. Is the research division using dependent or independent samples? Why?
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