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  3. a research report indicated that in 2018, 59% of a

A research report indicated that in 2018, 59% of all 6th graders owned a cell phone....

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Question

Statistics

  1. A research report indicated that in 2018, 59% of all6th graders owned a cell phone. A random sample of 1516th graders is drawn.
  1. Is it appropriate to use the normal approximation for thissituation? Why or why not?
  1. Find the probability that the sample proportion of6th graders who own a cell phone is more than 64.5%.(Find P(p > 0.645)).
  1. Calculate the probability that the sample proportion of6th graders who own a cell phone is between 54% and 66%.(Find P(.54 < p < 0.66)).

Answer & Explanation Solved by verified expert
4.0 Ratings (753 Votes)
SolutionGiven thatp 0591 p 1 059 041n 151a np 10 and n1 p 10151 059    See Answer
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