# please help with this question 19

**Problem #36 Hypothesis Testing for Slope:**

*Use the formula information. When testing the slope M of the regression line for the population, you usually test that the slope is 0, or H ^{o}: M = 0. A slope of 0 indicates that there is no linear relationship between x and y. To perform the t-test for the slope M, use the standardized test statistic with n – 2 degrees of freedom.*

Then, using the critical values found in Table 5 in Appendix B, make a

decision whether to reject or fail to reject the null hypothesis. You can also

use the LinRegTTest feature on a TI-83/84 Plus to calculate the standardized

test statistic as well as the corresponding P-value. If P â‰¤ Î±, then reject the

null hypothesis. If P > Î±, then do not reject H^{o}.

The following table shows the ages (in years) and salaries (in thousands of

dollars) of a random sample of engineers at a company. Test the claim of M â‰ 0.

Use Î± = 0.05. Then interpret the results in the context of the problem. If

convenient, use technology to solve the problem.