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Suppose a telephone poll is conducted by contacting U.S. Citizens via landlines about their view of gay marriage. Suppose over 50 % of those called do not support gay marriage.
Does that mean that you can say over 50% of all people in the U.S. do not support gay marriage?
a. Yes: over 50% of the respondents indicated they do not support gay marriage.
b. No : one can't say over 50% of the respondents indicated they do not support gay marriage when the only people surveyed were those in the US with landlines.
A recent report in Business Week indicated that 20 percent of all employees steal from their company each year. If a company employs 50 people, what is the probability that: Fewer than 5 employees steal?
how can you tell when you are to run an independent or a dependent sample test? give an example to help illustrate your
if the level of confidence is increased while the sample size remains the same how will the width of a confidence
78 percent of the males attended college. A management trainee is selected at random. What is the probability that the person selected is a female who did attend college?
At today's spot exchange rates 1 U.S. dollar can be exchanged for 9 Mexican pesos or for 111.23 Japanese yen. You have pesos that you would like to exchange.
Suppose that Total Revenue = 200Q and Total Cost = 80 + 50Q where Q, the quantity sold, is a random variable with expected value 20 and variance 4.
The theoretical probability of undesirable side effects resulting from taking Grebex is 1 in 11. If 121 people take Grebex to lower their blood pressure, how many will encounter undesirable side effects?
You are a project manager for Advancement Corporation, which specializes in providing quality pharmaceuticals to doctors throughout the United States. The company has over 20,000 employees.
A researcher wants to determine a 99% confidence interval for the mean number of hours that adults spend per week doing community service.
Based on these results, is there significant difference between attitudes for males and for females? Use two tailed test with alpha = .05.
What is a financial and economic issue in the healthcare industry?
Genetics What is the probability that a couple planning to have two children will have at least one child of each sex?
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