Concept explainers
The absorbency of a certain towel is considered normal if the towel is able to hold between six and eight mL. The first checks for materials result in absorbency measures of
What possible values for the third reading
To find: The possible values for the third reading m which will make the average absorbency normal.
Answer to Problem 31P
Explanation of Solution
Given information:
The absorbency of a certain towel is considered normal if the towel is able to hold between six and eight mL. The first checks for materials result in absorbency measures of 6.2 mL and 7.2 mL.
Calculation:
Let m mL be the result of third reading which will make the average absorbency normal.
The average value of absorbency of all the three checks =
The average absorbency is normal, if
Thus, the values for the third reading m which will make the average absorbency normal should be between 4.6 mL and 10.6 mL.
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