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Please provide clear explanation
The R2 and adjusted R2 tell us how much of the variation in the dependent variable is explained by our model but not much else. That works well for forecasters, who worry more about R2 than bias. What conditions need to hold for that attitude to make sense?
The Big Triple at the local racetrack consists of picking the correct order of finish of the first three horses in the ninth race. If there are 12 horses entered in today's ninth race, how many Big Triple outcomes are possible?
The flashlight batteries produced by Manufacturer X are known to have a mean life of 60 hours, with a standard deviation of 4 hours. At least what percentage of flashlights will have a life of 54 to 66 hours?
Explain this result (including the underlying logic of the computations) to a person who understands hypothesis testing involving a single sample and a known population, but knows nothing about t tests.
three missiles are fired at a target with probabilities 0.7 0.8 and 0.9 of hitting the target respectively. assume
a shipment of 30 tires arrived at a tire shop this past weekend and unknown to the manager eight of the tires are
specifically 68 of gen y people have a say in computer purchases. suppose you select a sample of 100 gen y
The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds.
A leasing firm claims that the mean number of miles driven annually,u , in its leased cars is less than 13500 miles. A random sample of 70 cars leased from this firm had a mean of 13207 annual miles driven.
a time standard was set as 0.20 hour per unit based on the 80th unit produced. if the task has a 80 percent learning
you notice in your introductory psychology class that more women tend to sit up front and more men sit in the back.
what results in your departments seem to be correlated or related to other activities? how could you verify this?
Determine the probability that the given class period runs greater than 50.75 minutes. Determine the probability of choosing the class period runs greater than 50.75 minutes.
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