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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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A coffee manufacturer claims that the mean amount of coffee in its 3-ounce jars is 3.1 ounces. Based on a sample of 50 jars, a consumer advocate group
obtains the following 98% confidence interval for the population mean weight, u: 2.95 ounces to 3.05 ounces. Based on this interval, do you think that the
manufacturer's claim is plausible? Possible? Explain your thinking.
We can be 98% confident that the true mean weight lies between 2.95 and 3.05
O ounces. Since this interval does not include the value 3.1, the manufacturer's claim is
unlikely to be true. Nevertheless, the manufacturer's claim is not impossible.
We can be 98% confident that the true mean weight lies between 2.95 and 3.05
O ounces. Since this interval includes the value 3.1, the manufacturer's claim is likely to
be true. Nevertheless, the manufacturer's claim is possible.
We can be 98% confident that the true mean weight lies between 2.95 and 3.05
O ounces. Since this interval does not include the value 3.1, the manufacturer's claim is
likely to be true. Nevertheless, the manufacturer's claim is not impossible.
We can be 98% confident that the true mean weight lies between 2.95 and 3.05
O ounces. Since this interval does not include the value 3.1, the manufacturer's claim is
unlikely to be true. Nevertheless, the manufacturer's claim is impossible.
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