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An average of 12 ounces of beer is used to fill each bottle in a local...

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Statistics

An average of 12 ounces of beer is used to fill each bottle in alocal brewery as recorded. The manager now believes that, ingeneral, beer bottles are overfilled. He takes a random sample of30 bottles to test. The sample mean weight of the bottles is 12.8ounces with a standard deviation of 1.5 ounces. Conduct aone-sample t-test to test whether the beer bottles are overfilled.Use 5% level of significance. (Round your steps to 4 decimalplaces, round the t test statistic to 3 decimal places)

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