The management of a soft drink company is interested in determining whether the proper amount of soft drink has been placed in 2-liter bottles at the...
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The management of a soft drink company is interested in determining whether the proper amount of soft

drink has been placed in 2-liter bottles at the local bottling plant. The bottling plant has informed the management that the population standard deviation for 2-liter bottles is 0.05 liter. A random sample of one hundred 2-liter bottles selected from this bottling plant indicates a sample mean of 1.978 liters.

 

a. Use a one-sample hypothesis test to decide whether the mean amount in the bottles is different from 2.0 liters. Use a 0.05 level of significance.

b. Construct a 95% confidence interval estimate of the population mean amount in the bottles.

c. Compare the results of parts (a) and (b). What conclusions do you reach?     

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