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For a particular suburb near St. Louis the residential water usage varies from home to home. For the most recent month the city produced the following summary for the amount of water used.
Mean: 2936
Median: 2372
Min: 80
Max: 12040
Q1: 1406
Q3:4120
St Dev: 2350
One home used 10,052 gallons of water during the month. What cutoff would be used to determine if this value is classified as an outlier or not?
in a simple linear regression model if the plots on a scatter diagram lie on a straight line what is the coefficient of
Marketing and Consumer Behavior According to a recent survey, Americans are keeping their cars longer. Some of the reasons may include the poor economy.
Assuming a control group is added, explain how you would assign the 180 horses to the three treatment groups for a completely randomized design.
American youngsters aged 6 to 19, 15% were seriously overweight. Calculate and interpret a confidence interval using a 99% confience level for the proportion of all american youngsters.
How can you identify whether a piece of collected information is nominal?
Describe at least five instances of actual data presented. These can include surveys, experiments, business data, and even sports information.
Suppose you simultaneously roll two dice n times and record the outcomes. Based on these values, how would you assess the null hypothesis that the outcome.
The following data give the annual incomes (in thousands of dollars) and amounts (in thousands of dollars) of life insurance policies for eight persons.
The DPMO for process is 860. Find the approximate Six Sigma level of the process?
Suppose that of a population of N items, k are defective in some way. For example, the items might be documents, a small proportion of which are fraudulent.
a frequency distribution was constructed for the ages of all 25 of the ceos of the company x. to answer the parts of
In an effort to determine the didactic benefits of computer activities when used as an integral part of a statistics course for engineers.
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