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Determine the error for each of the following forecasts. Compute MAD and MSE. Period Value Forecast Error 1 202 - - 2 191 202 3 173 192 4 169 181 5 171 174 6 175 172 7 182 174 8 196 179 9 204 189 10 219 198 11 227 211
Statistics and Probability, Statistics
A teacher started class one day by drawing the names of 10 students out of a hat and asked them to accomplish as much pushups as they could. The 10 randomly selected students averaged 15 pushups per person with a standar ...
An egg farmer wanted to determine if increasing the amount of time the lights were on in his hand house would increase egg production. For example of 8 chickens he determined the production before and after increasing th ...
1) Let Z be a standard normal random variable with mean = 0 and standard deviation = 1. Us the normal table to find the following answers. a) P(0 b) P(-1.22 c) Find the value Z 0 such that P(0 0 )= 0.4901. 2) On a typic ...
Boxes of sugar are filled by machine with considerable accuracy. The distribution of box weights is normal and has a mean of 32 ounces with a standard deviation of only 2 ounces. A quality control inspector takes a sampl ...
Would you actually build a contingency chart for this question or is this just probability basics? Bob sets two battery powered alarm clocks to make sure he wakes up in time for his 8 AM accounting test. Each alarm clock ...
A firm evaluates all of its projects by applying the IRR rule. Year Cash Flow 0 -$ 153,000 1 78,000 2 67,000 3 49,000 What is the project's IRR? If the required return is 11 percent, should the firm accept the project? Y ...
Future Value of an Annuity What is the future value of a $470 annuity payment over 7 years if the interest rates are 6 percent?
You paid cash for $1,300 worth of stock a year ago. Today the portfolio is worth $1,888. a. What rate of return did you earn on the investment? b. Now suppose that you bought the same stock but bought it on margin. The ...
A community hospital wants to estimate the body mass index (BMI) of its local population. To estimate the BMI with an error of at most 0.5 at a 95% confidence level, what sample size should they use? The standard deviati ...
Sharon recently invested in real estate with the intention of selling the property one year from today. She has modeled the returns on that investment based on three economic scenarios. She believes that if the economy s ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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