When testing whether the correlation coefficient differs from zero, the value of the test statistic is t20 =?
When testing whether the correlation coefficient differs from zero, the value of the test statistic is t20 = −2.95 with a corresponding p-value of 0.0061. At the 5% significance level, can you conclude that the correlation coefficient differs from zero?
What is the best R2 value for a regression model?
If two linear regression models have the same number of explanatory variables, a model with an R2 value of 0.45 is a better prediction model than a model with an R2 value of 0.65.
Can two or more values in a data set occur with the most frequency?
Yes, if two or more values in a data set occur with the most frequency and the frequency is greater than one. The table below gives the deviations of a portfolio's annual total returns from its benchmark's annual returns, for a six-year period ending in Year 6. mean = -1.67% and median = -0.56%.
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