Quiz 6 Solutions - STAT 225 Quiz 6 Mon April 7 2014...

This preview shows page 1 - 2 out of 4 pages.

1 STAT 225, Quiz 6 Mon. April 7, 2014 Name (please print) ________________________ Class Time: _________________ Directions: You have 10 minutes to complete the quiz. Show all work to receive full credit. Instructors will not interpret questions for you. Write out the probability statement and show work. Use 4 decimal places in your answers. Suppose that the daily television viewing time per household follows a normal distribution with an average of 8.35 hours and a standard deviation of 2.5 hours. Let X = amount of TV viewing per household. X~𝑁(𝜇 = 8.35, 𝜎 = 2.5)a)What is the probability that a household views less than 7 hours of television in a day? (4 points)
b)How many hours of television viewing must a household have in order to be in the top 3% of all television viewing households? (5 points)

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture