An engineer wants to measure the bias in a pH Meter. She uses the meter to measure
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An engineer wants to measure the bias in a pH Meter. She uses the meter to measure the pH in 12 neutral substances (pH = 7.0) and obtains the data shown below. 7.01, 7.04, 6.97, 7, 6.99, 6.97, 7.04, 7.04, 7.01, 7.00, 6.99, 7.07 Use the Alpha = 0.05 level of significance to test if the pH meter is calibrated correctly. •State the null and alternative hypothesis •State your conclusion for your hypothesis test. •Give the 95% Confidence Interval •Give a conclusion for the confidence interval test.
Related Book For
Elementary Statistics Picturing the World
ISBN: 978-0321911216
6th edition
Authors: Ron Larson, Betsy Farber
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