Suppose that when the pH of a certain chemical compound is 5.00, the pH measured by a
Question:
a. If pH is a normal variable and there are 25 students in each lab, compute P(-.1 ≤ - ≤ .1).
b. If there are 36 students in each lab, but pH determinations are not assumed normal, calculate (approximately) P(-.1 ≤ - ≤ .1).
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781305251809
9th Edition
Authors: Jay L. Devore
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