Mathematics, 07.11.2019 06:31 Emptypockets451
Suppose (as is roughly true) that 88% of college men and 82% of college women were employed last summer. a sample survey interviews srss of 400 college men and 400 college women. the two samples are of course independent. (a) what is the approximate distribution of the proportion pf of women who worked last summer? what is the approximate distribution of the proportion pm of men who worked? (b) the survey wants to compare men and women. what is the approximate distribution of the difference in the proportions who worked, pm − p f ? explain the reasoning behind your answer. (c) what is the probability that in the sample a higher proportion of women than men worked last summer?
Answers: 3
Mathematics, 21.06.2019 19:30
Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36
Answers: 1
Mathematics, 21.06.2019 20:30
Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14
Answers: 3
Mathematics, 21.06.2019 21:50
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
Answers: 1
Suppose (as is roughly true) that 88% of college men and 82% of college women were employed last sum...
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