Question

Find an article that discusses percentage of an issue. Use the p-hat from the article and...

  1. Find an article that discusses percentage of an issue. Use the p-hat from the article and my ‘n’ of 125 to find the 90% confidence interval for the population proportion. Attach the article.

  1. Gwendolyn’s is a very good actress and usually gets a call back after an audition 78% of the time. What is the probability distribution table for her getting her first callback on her 1st thru 6th audition?

Auditions

1

2

3

4

5

6

P(x)

  1. For my last stats final exam, 46 students took the exam. The mean score of 82 came from a range of scores from 42 to 98:
    1. How many final exam grades would need to be sampled to be 94% confident that I am within 0.2 points of population mean for final exam scores?
  1. Construct the 86% confidence interval of the population mean of final exam scores for the sample of 46 test scores.

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