Recall the Empirical Rule from Chapter 3. It states that if the data distribution is bell shaped,
Question:
The bell-shaped distribution referenced is the normal distribution.
a. Verify that a standard normal distribution contains approximately 68% of the values in the interval μ ± σ.
b. Verify that a standard normal distribution contains approximately 95% of the values in the interval μ ± 2σ.
c. Verify that a standard normal distribution contains virtually all of the data in the interval μ ± 3σ.
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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