Can I please get this in 15mins

3. (20 pts.) You are looking for a linear relationship between age and systolic blood pressure. After drawing your sample, measuring age in years and systolic blood pressure in mm HG, you obtain the following information: y = 79.733 + 1.724 x r=.908 12 =.734 .. a. Explain the meaning of the slope in terms of this problem. b. What does the coefficient of determination tell us in this problem? 4. (35 pts.) The Tiptop shoe company claims that the average yearly salary of its workers is $47,800. The union believes the average salary is much less. A random sample of 64 employees shows their average salary to be $47,000 with standard deviation of $800. Using a 5% significance level, does the sample support the union