Answer
Between $3.993~inches$ and $4.007~inches$.
Work Step by Step
For a bell shaped distribution, according to the Empirical Rule, 68% of the data will be between $μ-1σ$ and $μ+1σ$. In this case, between $4-0.007=3.993$ and $4+0.007=4.007$.
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 3 - Section 3.2 - Assess Your Understanding - Applying the Concepts - Page 154: 32a
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