A soft-drink firm is evaluating an investment in a new type of canning machine. The company has
Question:
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a. Estimate the standard deviations in fill for types of machines using 95% confidence intervals.
b. Do these data present sufficient evidence to indicate that the new type of machine has less variability of fills than the old machine?
c. Do the necessary conditions for conducting the inference procedures in parts (a) and (b) appear to be satisfied? Justify your answer.
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a b Thus we reject H 0 and conclude the data supports the statement that ...View the full answer
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Related Book For 
An Introduction To Statistical Methods And Data Analysis
ISBN: 9781305465527
7th Edition
Authors: R. Lyman Ott, Micheal T. Longnecker
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