MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The​ quality-control manager at a compact fluorescent light bulb​ (CFL) factory needs to determine whether the mean life of a large shipment of CFLs is equal to

7,508

hours. The population standard deviation is

840 hours.

A random sample of

49

light bulbs indicates a sample mean life of

7,328

hours.

Let

μ

be the population mean. Determine the null​ hypothesis,

H0​,

and the alternative​ hypothesis,

H1.
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