Question

A sample of 34 oil industry executives was selected to test a questionnaire. One question about...

A sample of 34 oil industry executives was selected to test a questionnaire. One question about environmental issues required a yes or no answer.

b. Which of the following are possible events. (You may select more than one answer. Chose statements which are correct.)

31 people respond "Yes"

33 people respond "Yes"

21 people respond "No."

41 people respond "No."

The questionnaire fails to reach one executive.unchecked

c. 19 of the 34 executives responded yes. Based on these sample responses, what is the probability that an oil industry executive will respond yes? (Round your answer to 2 decimal places.)

Probability

Homework Answers

Answer #1

SolutionA:

n=34

where n is sample size

these may be favorable events:

31 people respond "Yes"

33 people respond "Yes"

21 people respond "No."

it cannot be 41 people respond "No."

since our n is only 34

ANSWER FOR B is

31 people respond "Yes"

33 people respond "Yes"

21 people respond "No."

c. 19 of the 34 executives responded yes. Based on these sample responses,

probability=favourable events/total outcomes

=19/34

=0.56

ANSWER:0.56

the probability that an oil industry executive will respond yes=0.56

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