The data below was 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.
Number of fireworks in use x 67.6 87.1 117 115 118 113
Related injuries y 12,100 12,600 12,500 10,900 7,800 7,000
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.
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