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The equation used to predict college gpa (range 0-4.0) is y^=0.15=0.54x1+0.002x2, where x1 is high school gpa (range 0-4.0) and x2 is college board score (range 200-800). Use the multiple regression equation to predict college gpa for a high school gpa of 3.6 and a college board score of 600.
Blockbuster is testing a new policy of waiving all late fees on DVD rentals using a sample of 10 randomly chosen customers.
A multiple regression analysis includes 25 data points and 4 independent variables results in SST = 200 and SSR = 150. the multiple standard error of estimate will be?
Ten automobiles were driven on a measured test track - once with standard gasoline with no additive and once with an additive supposed to increase miles per gallon (mpg). The results are given below:
Assume a normal distribution applies and alpha = 0.05 (Use Z table), find the Critical value for the alternative hypothesis:
What is the sensitivity and specificity of the test? Suppose that 1 out of 500 infants are born with Down's syndrome.
Recent crime reports indicate that 4.2 motor vehicle thefts occur each minute in the United States. Assume that the distribution of thefts per minute can be approximated by the Poisson probability distribution.
Florida consumers are confident about the economy. verify the 90% confidence interval. State in a sentence the meaning of the derived confidence interval .494, .568. What would be your conclusion?
At the 0.01 level of significance, is there evidence to support the professor's claim?
Find the minimum amount of water pumped in 30 days. Let y be the total number of gallons pumped x days after pumping being. Note that (0,0) is on graph of the equation.
As a part of a class project, your statistics instructor asks you to weigh a sample of 100 items from a shipment of 500. You are testing the null hypothesis that the mean is greater or equal to 10 lbs.
Describe what do you mean by terms 'false positive" and " false negative".
A catering company is buying equipment in order to set up their own store. They have a choice of two ovens that they can purchase for the store.
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