Azraq2584 Azraq2584

29-10-2019
Business

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Auto pistons at Wemming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. From sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows: Day Mean Bold x overbar (mm) Range R (mm) 1 156.9 4.4 2 155.2 4.4 3 153.6 4.3 4 157.5 4.8 5 158.6 4.5 (a) What is the value of x double overbar?

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Karabo99 Karabo99

29-10-2019

Answer:

The value of x double overbar is 156.36.

Explanation:

x double overbar = [156.9 + 155.2 + 153.6 + 157.5 + 158.6 ]/5

= 156.36

Therefore, The value of x double overbar is 156.36.

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