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Before starting his campaign for mayor, Mr. Emory Board decided to do study to see if there was a difference in the proportion of registered men and women voters who actually vote (so he would know whom to target his campaign toward). Of the 100 men and 150 women surveyed, 50 men and 100 women admitted to voting. What can he conclude at the .05 level of significance? (Note: treat men as GROUP 1and women as GROUP 2)
1a) What is the direction of the test? (TWO-TAILED or UPPER-TAILED or LOWER-TAILED)
1b) What is the computed p-value? ____________________
1c) The null hypothesis should be rejected. (TRUE or FALSE)
1d) It can be concluded that there is a difference in voting by gender. (TRUE or FALSE)
Given that the student selected is a social science major, what is the probability that she is also a sophomore? Write your responses as fractions.
Consider an urn that contains 40 balls. Of these 20 are red, 10 are green, and the remaining are blue. What is the probability that if nine balls are randomly selected from the urn then exactly three are of each color?
What is the probability that the sampling error made in estimating the population mean by the mean of a random sample of 50 test scores.
at an emergency room one out of every four urgent patients triaged is followed by another urgent patient while only one
Location The 2013 Profile of International Home Buying Activity reported the percentage of total foreign purchases of U.S. homes by country of origin.
Which of the above versions of the "law of averages" are correct interpretations of probability?- How many heads would you expect to have after 50 flips of a fair coin?
Find the standard deviation of this sample of distances. Round your answer to at least two decimal places.
"Wireless Sensor Networks: A survey of cross-layer MAC and Routing protocols and their performance evaluation methodologies" It is a literature review topicRegardless of the topic chosen, you need to demonstrate a sound knowledge and understanding..
A diabetic is interested in determining how the amount of aerobic exercise impacts his blood sugar. When his blood sugar reaches 170 mg/dL.
Suppose that 30 percent of computer owners use a Macintosh, 50 percent use Windows, and 20 percent use Linux. Suppose that 65 percent of the Mac users have succumbed to a computer virus, 82 percent of the Windows users get the virus, and 50 ..
This is a two-tailed test with both a negative lower critical value and a positive upper critical value. Separate variances is assumed.
a bank has the following data on the gender and marital status of 200 customers: single 20 male 30 female, married male 100 female 50,
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