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In a certain city, 50 percent of the people consider themselves conservative (C), 25 percent consider themselves liberal (L), and 25 percent consider themselves to be independent (I). During a particular election, 40 percent of the Conservatives voted, 45 percent of the Liberals voted, and 60 percent of the Independents voted. If a randomly selected person voted, how would I find the probability that the person is (a) Conservative, (b) Liberal, (c) Independent?
Determine and report the within-group slope which relates Y to Xc (for this, you will have to look at your regression printout).
Consider the relationship between yearly wine consumption (litres of alcohol from drinking wine per person) and yearly deaths from heart disease (deaths per 100,000 people) in 19 developed countries.
This sample group has errors with a standard deviation of 54.7ft. At the 5% level of significance, test that the new population has errors with a standard deviation equal to 43.7ft.
Jasmine is an African American graduate student. She is conducting research on the effects that affirmative action programs have had on American corporations.
What is the probability of finding exactly four watch soap operas?
The following frequency distribution was obtained. The data values are in hours. Construct a histogram for the data .
Make up the ages of a group of participants who are freshman, sophomores, juniors, and seniors. You will need the age of 10 participants across each level.
A study of classified advertisements in a local newspaper shows that 204 are help-wanted ads, 520 are real estate ads, and 306 are for other ads.
Assume that the underlying population variances are equal. a. Are the two samples paired or independent?
(A) At the 0.05 level of significance, use the six step critical value approach to hypothesis testing to try and prove that the 2004 proportion has increased. (B) Use the 5 step p-value approach. Interpret the meaning of the p value.
State along statistical certainty there is a difference among the population proportions of those favoring Statement.
ABC Corporation has been using statistical process control for several months.
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