Fizzco, a beverage manufacturing company, is interested in determining whether the standard deviation of their dispensing process
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a. Calculate the point estimate of σ.
b. Construct the 95% confidence interval for the population standard deviation. Assume the amount of beverage dispensed follows a normal distribution.
c. At the 5% significance level, can we conclude that the standard deviation of the amount of beverage dispensed differs from the required level of 5 milliliters?
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Related Book For
Business Statistics Communicating With Numbers
ISBN: 9780078020551
2nd Edition
Authors: Sanjiv Jaggia, Alison Kelly
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