KrystAL G.

asked • 10/14/17# brand of crockpots has a mean high temperature of 260º F and a standard deviation of 3º F. If a

brand of crockpots has a mean high temperature of 260º F and a standard deviation of 3º F. If acrockpot′

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highest temperature is below 251º F or above 269º F, it is considered defective. What percentage of these pots can be expected to be defective

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highest temperature is below 251º F or above 269º F, it is considered defective. What percentage of these pots can be expected to be defective

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## 2 Answers By Expert Tutors

Mark M. answered • 10/14/17

Tutor

5.0
(243)
Mathematics Teacher - NCLB Highly Qualified

Obtain a z-score chart:

http://www.stat.ufl.edu/~athienit/TPentrables/Ztable.pdf

Low temp

z = (251 - 260) / 3

z = -9 / 3

z = -3

Percentage below is 0.13%

High temp

z = (269 - 260) / 3

z = 3

Percentage above is 0.13%

Mark M.

Glad to have helped you know. You are welcome!

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10/14/17

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KrystAL G.

10/14/17