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The CEO of a large manufacturing company is curious if there is a difference in productivity level of her warehouse employees based on the region of the country the warehouse is located. She randomly selects 35 employees who work in warehouses on the East Coast (Group 1) and 35 employees who work in warehouses in the Midwest (Group 2) and records the number of parts shipped out from each for a week. She finds that East Coast group ships an average of 1287 parts and knows the population standard deviation to be 348. The Midwest group ships an average of 1449 parts and knows the population standard deviation to be 298.
Using a 0.01 level of significance, test if there is a difference in productivity level. What are the correct hypotheses for this problem?
What is your decision regarding the null hypothesis? (Click to select) Reject Cannot reject H0. There is (Click to select)
From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable.
For which of the following would it be inappropriate to display the data with a single pie chart? The distribution of car colors for vehicles purchased.
A manufacturer of boxes of candy is concerned about the proportion of imperfect boxes - those containing cracked, broken or otherwise damaged candies.
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a popular flashlight that uses two d-size batteries was selected and several of the same models were purchased to test
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A football league reported that the mean number of touchdowns per game was five. A study is done to determine if the mean number of touchdowns has decreased.
a family doctor is interested in examining the relationship between a patients age and total cholesterol. he randomly
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