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Author Question: A new drug is successful 80 of the time. A student would like to simulate the probability that if 5 ... (Read 59 times)

olgavictoria

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on: Jul 24, 2018
A new drug is successful 80 of the time. A student would like to simulate the probability that if 5 people are given the drug it will be successful on exactly 3 of them. She will randomly choose digits with equal probability from 0, 1, 2, ..., 9 to represent each individual. How should she assign outcomes?
 a. Digits 0 to 2 represent successful treatment while digits 3 to 9 represent failure.
  b. Digits 0 to 4 represent successful treatment while digits 4 to 9 represent failure.
  c. Digits 0 to 7 represent successful treatment while digits 8 and 9 represent failure.
  d. Digits 0 to 8 represent successful treatment while digit 9 represents failure.

Question 2

In a past General Social Survey, 87 of a random sample of n = 990 respondents answered yes to the question Would you approve of an adult male punching a stranger if the stranger had broken into the man's house? A 90 confidence interval for the proportion of all Americans who approve of punching an intruder is
 a. 0.852 to 0.888
  b. 0.849 to 0.891
  c. 0.845 to 0.895
  d. 0.842 to 0.898


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nyrave

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Questions 95 to 97: In the Banana Republic there are two producers of PCs, referred to as Pac and Bell. Assume that there are no PC imports. The market shares for these two producers are 70 for Pac and 30 for Bell. One executive at Bell proposes a longer warranty period (similar to one given by auto makers) to be offered at a slight extra cost as a plan to increase market share. A market research company appointed by Bell conducts a census of PC owners on their opinion of this warranty proposal. Among owners of a PC made by Pac, 50 like the proposal, 30 are indifferent to it, while the remaining owners oppose it. Among owners of a PC made by Bell, 70 like the proposal, 20 are indifferent to it, and the remaining owners oppose it.

Answer to Question 2

A


olgavictoria

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Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

xthemafja

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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