Do students with higher college grade point averages (GPAs) earn more than those graduates with lower GPAs? Consider the following hypothetical college GPA and salary data (10 years after graduation). GPA Salary ($) 2.22 72,000 2.29 48,000 2.57 72,000 2.59 64,000 2.77 88,000 2.85 96,000 3.12 133,000 3.35 130,000 3.66 157,000 3.68 162,000(b) Use these data to develop an estimated regression equation that can be used to predict annual salary 10 years after graduation given college GPA. (Letx - GPA, and let y - salary (in $). Round your numerical values to the nearest integer.) 9 - 114279 + 74323:: X Find the value of the test statistic. (Round your answer to two decimal places.) 106.02