Source SS DF MS Test Statistic Regression ?? 33 1120.61120.6 Error 490.23490.23 Total 9244.569244.56 1515 Step 1 of 9:Calculate
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
| Source | SS | DF | MS | Test Statistic |
|---|---|---|---|---|
| Regression | ?? | 33 | 1120.61120.6 | |
| Error | 490.23490.23 | |||
| Total | 9244.569244.56 | 1515 |
Step 1 of 9:Calculate the Sum of Squared Regression. Round your answer to two decimal places, if necessary.
Step 2 of 9Calculate the Degrees of Freedom among Error.
Step 3 of 9:Calculate the
Step 4 of 9:Calculate the Mean Squared Error. Round your answer to two decimal places, if necessary.
Step 5 of 9:How much of the variation in the dependent variable is explained by the regression? Round your answer to two decimal places, if necessary
Step 6 of 9:What proportion of the variation is explained by the regression? Round your answer to two decimal places, if necessary.
Step 7 of 9:What is the estimated variance of the error terms? Round your answer to two decimal places, if necessary.
Step 8 of 9:What is the total variability of the dependent variable? Round your answer to two decimal places, if necessary.
Step 9 of 9:What is the variance of the dependent variable? Round your answer to two decimal places, if necessary.
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