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Category > Statistics Posted 29 Apr 2017 My Price 8.00

What are the mean and standard deviation

Archery. A champion archer can generally hit the bull’seye 80% of the time. Suppose she shoots 200 arrows during competition. Let represent the percentage of bull’s-eyes she gets (the sample proportion).

a) What are the mean and standard deviation of the sampling distribution model for?

b) Is a Normal model appropriate here? Explain.

c) Sketch the sampling model, using the 68–95–99.7 Rule.

d) What’s the probability that she gets at least 85% bull’s-eyes?

 

Answers

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Status NEW Posted 29 Apr 2017 10:04 AM My Price 8.00

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file 1493460333-Answer.docx preview (69 words )
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