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Finding the conditional probability for the given data.
Suppose that, at USU, 60% of the faculty is male and 40% are female. Of the male faculty, 70% say they vote Democrat, versus 50% of the female faculty who say they vote Democrat.
(a) I pick one faculty member at random. What is the chance that this person votes Democrat?
(b) I pick a second faculty member at random from the original population and determine that this person votes Democrat. Given this fact, what is the conditional chance that the selected person is male?
Which of the following events are disjoint and What proportion of the females rated their intelligence less than 7.
Perform a contingency analysis on the data to determine if there is any dependency between the number of level of education attained by the father and the size of his family.
At the .05 significance level, can we conclude that the guideline is still reasonable?
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
Compute a 90 percent confidence interval for the difference among the two population proportions. The CEO of the company would like to find out if Canadians.
At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?
How large should n be so that the standard deviation of is no more than 0.01 and sampling distribution
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.
By using the fact that Martha believes the treatment will decrease the amount of time to fall asleep, describe the null and alternate hypotheses.
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
An advantage of the permutation test over the t test for a difference in means, can Permutation tests be used for tests when we believe the two populations differ under the null hypothesis.
About what percent of the observations lie between 55 and 65?
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