Mathematics, 20.12.2019 19:31 kprincess16r
Astudy was conducted to determine if the salaries of librarians from two neighboring cities were equal. a sample of 15 librarians from each city was randomly selected. the mean from the first city was $28,900 with a standard deviation of $2300. the mean from the second city was $30,300 with a standard deviation of $2100. construct a 95% confidence interval for u1 -u2.
a.) (-4081, 597)
b.) (-2054, 238)
c.) (-2871, 567)
d.) (-3125, 325)
Answers: 1
Mathematics, 21.06.2019 20:30
Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, yโ12, z). find x, y, and z. there are 2 sets.
Answers: 1
Mathematics, 21.06.2019 21:30
If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2
Answers: 2
Astudy was conducted to determine if the salaries of librarians from two neighboring cities were equ...
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