A PC owner will be selected at random. What is the probability ...

[cdr_15]

A PC owner will be selected at random. What is the probability that the owner will be opposed to the proposal of a new warranty at extra cost?

Question 2

A 95 confidence interval for the proportion of young adults who skip breakfast is found to be 0.20 to 0.27. Which of the following is a correct interpretation of the 95 confidence level?
 a. There is a 95 probability that the true proportion of young adults who skip breakfast is between 0.20 and 0.27.
  b. In about 95 of all studies for which this procedure is used, the confidence interval will cover the true population proportion, but there is no way to know if this interval covers the true proportion or not.
  c. If this study were to be repeated with a sample of the same size, there is a 95 probability that the sample proportion would be between 0.20 and 0.27.
  d. The proportion of young adults who skip breakfast 95 of the time is between 0.20 and 0.27.

[Anton]

Answer to Question 1

0.17

Answer to Question 2

B

[cdr_15]

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[Anton]

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