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The probability that a woman is asked and her response is "yes" in favor of the death penalty is 0.31. The probability that the responder is a woman is 0.57. Find the probability that the response is in favor of the death penalty given that the responder is female.
Assume salaries are normally distributed with a standard deviation of $4,500. What is the probability of a new graduate receiving a salary between $45,000.
A researcher studies the relationship between political attitudes and income. He/she finds that those with higher income are more conservative.
Assuming this is literally true, how can it be explained? What facts / statistics would you need to know to expose this misleading claim?
How can you or your department decide whether or not the variation is important? How could using a mean difference test help?
To test whether the significant difference between two proportion test using large sample test.
Identify the null hypothesis, alternative hypothesis, test statistic, P-value or critical conclusion about the null hypothesis and final conclusion that addresses the original claim.
What is an example of a directional alternate hypothesis? What is an example of a non-directional alternate hypothesis?
Testing for population mean - How would this information be useful to you if you were the college register?
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
The population of lengths of aluminium coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.20 inches. A sample of four metal sheets is randomly selected from a batch. What is the possibility that t..
Determine the probability that the number of people who show up will exceed the capacity of the plane?
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.
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