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Mathematics, 20.04.2021 22:10 major126
A popular restaurant advertises that it delivers its orders within 30 minutes. Suppose the average delivery time for
one restaurant is 27 minutes with a standard deviation of three minutes. What is the delivery time with a z score of
1.2?
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Answers: 2
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Mathematics, 22.06.2019 04:40
The vice president of programming at nbc is finalizing the prime-time schedule for the fall. she has decided to include a hospital drama but is unsure which of two possibilities to select. she has a pilot called the surgeon and another called critical care. to her make a final decision, a sample of 20 viewers from throughout the united states was asked to watch the two pilots and indicate which show they prefer. the results were that 12 liked the surgeon, 7 liked critical care, and one had no preference. state the decision rule, using the 0.10 significance level. h0: π = 0.50 h1: π ≠0.50 1. reject h0 if number of + signs is either < = or > = 2. what is your decision regarding h0? is there a preference for one of the two shows?
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Mathematics, 22.06.2019 06:00
In a rational number twice the numerator is 2 more than the denominator. if 3 is added to each, numerator and the denominator, the new fraction is 2/3. find the original number
Answers: 1
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