Statistics Solutions

Solution: A large class has 800 students, broken down into section meetings with 40 students each. On the final exam, scores followed a normal distribution

Question: (5pts) A large class has 800 students, broken down into section meetings with 40 students each. On the final exam, scores followed a normal distribution with mean of 72 and a standard deviation of 20.

  1. If you randomly select one of these students, what is the probability that the selected student scored between a 70 and 90 on the final exam?
  2. Construct and interpret a 95% confidence interval around the mean.

Price: $2.99
Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


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