STAT TECH IN BUSINESS & ECON AC
STAT TECH IN BUSINESS & ECON AC
18th Edition
ISBN: 9781264731657
Author: Lind
Publisher: MCG
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Confidence Intervals
When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calcul…
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Chapter 7, Problem 14E

A normal population has a mean of 12.2 and a standard deviation of 2.5.

  1. a. Compute the z value associated with 14.3.
  2. b. What proportion of the population is between 12.2 and 14.3?
  3. c. What proportion of the population is less than 10.0?
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STAT TECH IN BUSINESS & ECON AC

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