Correlation coefficient and regression equation

Reference no: EM1314723

1. The ________ is the probability of observing a sample value as extreme as, or more extreme than the value observed, given that the null hypothesis is true.

2. The long-term behavior of a variable over an extended period of time is the ________

3. The variation within a year, such as retail sales during "back to school" period is called ______

4. A period of prosperity, followed by recession is called the ______________

5. When we plot a trend equation, the variable plotted along the horizontal axis is __________

6. Use the __________ to test if two sample variances come from the same or equal populations.

7. The coefficient of correlation can range between the two perfect correlations of ____________

8. If the coefficient of correlation is computed to be -0.80, this means as X increases Y ________

9. In a Chi-Square test of sales by days of the week at the 95% confidence level the critical value is _____.

10. With an r of -0.7 what proportion of the variation in Y is explained by variation in X? ______

11. With the regression equation of Y' = 3X + 25, when X equals 0, then Y' equals _______

Reference no: EM1314723

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