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1. In a population of 1000 dogs whose weights are normally distributed where the mean of the dog population is 12 and the standard deviation of the population is 6, what is the percentage of dogs we would expect to weigh between 10 and 20 pounds?
2. Test the hypothesis that the average weight for a dog is not 11.5 pounds, at the 5% level.
3. Test the hypothesis that the weight of a dog is more than 5 pounds greater than that of a cat, whose average weight is 6.8 pounds with a standard deviation of 1 pound in a sample of 100 cats.
4. If you were to run a regression with dog weight as the dependent variable, choose an appropriate set of independent variables and report your proposed regression equation.
5. How would you judge the effectiveness of your regression model? 6. What types of data would you need, how would you obtain these data and to what biases would your regression be subject? Be specific.
An investment grows by 21% over a 6-year period. What is its effective annual percent growth rate?
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a triangle has sides that are of unknown lengths, but if one side is 12 x, the other sides are 5x and 6 x. Its perimeter is 52 inches. Determine the length of each side, show the steps of your answer clearly, check your answer and then state you a..
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Please evaluate the following integral using the formula for integration by parts, Please show detailed solution, including substitution(s) used.
A triangle drawn on a map has sides of lengths 7 cm, 11 cm, and 14 cm. The shortest of the corresponding real-life distances is 92 km. Find the longest of the real-life distances to the nearest tenth of a kilometer.
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