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# The marketing team at Beth's Butter Works decided they preferred the traditional plastic tub packaging, but they wanted a more refined estimate of...

The marketing team at Beth's Butter Works decided they preferred the traditional plastic tub packaging, but they wanted a more refined estimate of potential sales. They launched a third test at a regional level across 100 stores. These 100 stores had average daily sales of 140 units with a standard deviation of 50.

Calculate the 99%, 95%, and 68% confidence intervals for the average number of units Beth's Butter Works can anticipate to sell. Enter your results in the blanks below.

There is a 99% likelihood that they will sell between and units.

There is a 95% likelihood that they will sell between and units.

There is a 68% likelihood that they will sell between and units.