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Stephan makes 19 out of 25 foul shots. Use the normal distribution in probability and confidence...

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Statistics

Stephan makes 19 out of 25 foul shots. Use the normaldistribution in probability and confidence intervalcalculations.

  1. a) What is the a value for a confidence level of 80%?

  2. b) What is the standard deviation of the sample proportion x/nwhere x is the number

    of made shots and n is the total number of shots?

  3. c) What is the 80% confidence interval for underlying averagefoul shot percentage?

Answer & Explanation Solved by verified expert
4.5 Ratings (654 Votes)
Solution Given thata At 80 confidence level 1 80 1 080    See Answer
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