Mathematics, 08.11.2019 01:31, juliannabartra
In a population, 68% of all tax returns lead to a refund. a random sample of 1000 tax returns is taken. (a)describe the distribution of the number of returns leading to refunds in the sample.(b)what is the expected number of returns leading to refunds in the sample? what is its variance? (c)what is the mean of the sample proportion of returns leading to refunds? (d)what is the variance of the sample proportion? (e)what is the standard error of the sample proportion? (f)what is the probability that the sample proportion exceeds 0.65? (assume clt holds)
Answers: 1
Mathematics, 21.06.2019 17:00, alexandraschwartz21
Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.
Answers: 1
Mathematics, 21.06.2019 21:00, lollollollollol1
What is the missing statement in step 4? ? rts ? ? vtu and ? rtu ? ? vts ? rts ? ? rvs and ? rtu ? ? stv ? vrs ? ? vru and ? usr ? ? usv ? vur ? ? vus and ? uvs ? ? sru
Answers: 3
Mathematics, 22.06.2019 03:00, jdkrisdaimcc11
Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old
Answers: 2
In a population, 68% of all tax returns lead to a refund. a random sample of 1000 tax returns is tak...
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