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Author Question: According to the Federal Communications Commission, 70 of all U.S. households have vcrs. In a random ... (Read 41 times)

cnetterville

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on: Jul 24, 2018
According to the Federal Communications Commission, 70 of all U.S. households have vcrs. In a random sample of 15 households, what is the probability that at least 13 have vcrs?
 
  A) 0.1268 B) 0.7 C) 0.8732 D) 0.5

Question 2

A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 95 people to a treatment group and 95 to a placebo group.
 
  The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients symptoms are evaluated. A) experiment B) observational study


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anoriega3

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

A

Answer to Question 2

A


cnetterville

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Reply 2 on: Jul 24, 2018
Gracias!

ghepp

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Reply 3 on: Yesterday
Excellent

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