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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,
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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​?

User Martine
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Answer:

The value of x double overbar​ is 156.36.

Step-by-step 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.

User FierceMonkey
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