Rick operates a concession stand serving Iced Tea at the Los Angeles County Fair. Ben is the only employee stationed at his stand. Also, suppose that the following information holds good. The mean service time is six minutes. Control limits are 3 standard deviations on either side of the mean service time.The standard deviation is 0.5 min.Lower and Upper specification limits for a service time are 5.0 minutes and 7.0 minutes, respectively.Based on the above information, we can best infer that:a. Rick needs to change the lower spec. limit to 4.5 minutes and the upper spec. limit to 7.5 minutes.b. Rick always serves iced tea within the time limit expectations of any customer.c. Rick service process is NOT a capable one.d. Rick service process is a capable one.e. b and d are true.

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Answered: Rick operates a concession stand…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Rick operates a concession stand serving Iced Tea at the Los Angeles County Fair. Ben is the only employee stationed at his stand. Also, suppose that the following information holds good.

The mean service time is six minutes.
Control limits are 3 standard deviations on either side of the mean service time.
The standard deviation is 0.5 min.
Lower and Upper specification limits for a service time are 5.0 minutes and 7.0 minutes, respectively.

Based on the above information, we can best infer that:

a. Rick needs to change the lower spec. limit to 4.5 minutes and the upper spec. limit to 7.5 minutes.

b. Rick always serves iced tea within the time limit expectations of any customer.

c. Rick service process is NOT a capable one.

d. Rick service process is a capable one.

e. b and d are true.

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