Paint used to paint lines on roads must reflect enough light to be clearly visible at night.
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Paint used to paint lines on roads must reflect enough light to be clearly visible at night. Let m denote the mean reflectometer reading for a new type of paint under consideration. A test of H0: m 20 versus Ha: m 20 based on a sample of 15 observations gave t 3.2. What conclusion is appropriate at each of the following significance levels?
a. a .05
c. a .001
b. a .01
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Related Book For
Statistics The Exploration And Analysis Of Data
ISBN: 9781133171744
007th Edition
Authors: Roxy Peck, Ay L Devore
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