Question
11. You are constructing a histogram for describing the distribution of salaries for individuals who are 40 years or older, but are not yet retired.
11. You are constructing a histogram for describing the distribution of salaries for individuals who are 40 years or older, but are not yet retired.
What is on the Y-axis and X-axis?
What would be the probable shape of the salary distribution? Why?
12. Household's daily computer usage in hours is normally distributed with mean 2 and standard deviation of 0.5. What is the probability that a random household has a daily computer usage between 1.5 and 3? (Hint: You can use the Excel function NORM.DIST)
13. A test is normally distributed with a mean of 80 and a standard deviation of 15. What limits include the middle 60% of cases?
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Statistics For Business And Economics
Authors: James T. McClave, P. George Benson, Terry T Sincich
12th Edition
032182623X, 978-0134189888, 134189884, 978-0321826237
