Scatter plot, Correlation coefficient and Regression equation.
Do a complete regression analysis by performing the steps below.
Note: No regression should be done when r is not significant.
a. Draw a scatter plot.
b. Compute the correlation coefficient.
c. State the hypotheses.
d. Test the hypotheses at .
e. Determine the regression line equation (if applicable).
f. Plot the regression line on the scatter plot (if applicable).
g. Summarize the results.
The data below were obtained for the years 1993 through 1998 and indicate the number of fireworks (in millions) used and the related injuries. Predict the number of injuries (provided there is a significant relationship) if 100 million fireworks are used during a given year.
