Mathematics, 28.06.2019 06:20, jmt13happy
Suppose that we wish to assess whether more than 60 percent of all u. s. households in a particular income class bought life insurance last year. that is, we wish to assess whether p, the proportion of all u. s. households in the income class that bought life insurance last year, exceeds .60. assume that an insurance survey is based on 1,000 randomly selected u. s. households in the income class and that 640 of these households bought life insurance last year.
a) assuming that p equals .60 and the sample size is 1,000, what is the probability of observing a sample proportion that is at least .64?
b) based on your answer in part a, do you think more than 60 percent of all u. s. households in the income class bought life insurance last year? explain.
Answers: 3
Mathematics, 21.06.2019 16:30, cheergirl2854
Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?
Answers: 1
Mathematics, 21.06.2019 18:00, nefertitihorne12
Me asap! what is the slope of this line? enter your answer in the box.
Answers: 2
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