Consider the following regression output. Intercept Density Coefficients -21.53382961 3.540540183 Standard Error 4.73545449 0.29215907 Select one: O a. The correlation coefficient is significantly different from zero. O b. The correlation coefficient is equal to zero. t What does the p-value associated with the variable Density mean? O c. We do not reject the null hypothesis that the slope is zero. Od. The intercept and the slope are independent. O e. We reject the null hypothesis that the slope is zero. -4.547 12.119 p-value 0.00010 0.00001