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Author Question: Uncontrollable inputs are the decision variables for a model. Indicate whether the statement is ... (Read 113 times)

BRWH

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on: Jun 24, 2018
Uncontrollable inputs are the decision variables for a model.
  Indicate whether the statement is true or false

Question 2

The life expectancy of Timely brand watches is normally distributed with a mean of four years and a standard deviation of eight months.
 a. What is the probability that a randomly selected watch will be in working condition for more than five years?
 b. The company has a three-year warranty period on its watches. What percentage of its watches will be in operating condition after the warranty period?
 c. What are the minimum and maximum life expectancies of the middle 95 of the watches?
  d. Ninety-five percent of the watches will have a life expectancy of at least how many months?


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rleezy04

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Reply #1 on: Jun 24, 2018
Answer to Question 1

F

Answer to Question 2

a. .0668
b. 93.32
c. minimum = 32.32 months; maximum = 63.68 months
d. 34.84 months


BRWH

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Reply 2 on: Jun 24, 2018
Gracias!

Laurenleakan

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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