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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A corporation has 30 outlets in the North,40 in the South,60 in the Midwest,and 45 in the West.Using a proportional allocation of a random sample of 20% of the outlets,the manager records the following means and standard deviations.
-For a sample of 126 observations from a population of 873,the sample mean is 17.2 and the sample standard deviation is 2.4.Create a 99% confidence interval for the population mean.
Save Up
The act of regularly setting aside a portion of income or resources for future use or for a specific goal.
Esker
A long, winding ridge of sand and gravel deposited by meltwater streams flowing beneath a glacier.
Meltwater Channels
Channels formed by the flow of water produced from melting ice or glaciers.
Glacial Sediment
Material deposited by glaciers as they move and melt, ranging from fine silt to large boulders.
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