RQ18.

Fast reactions: In a study of reaction times, the time to respond to a visual stimulus (x) and the time to respond to an auditory stimulus (y) were recorded for each of 6 subjects. Times were measured in thousandths of a second. The results are presented in the following table.

Visual Auditory

115 130

120 125

115 125

120 105

100 136

95 138

Use the P-value method to test H0 : B1 = 0 versus H1 : B1 < 0. Can you conclude that visual response is useful in predicting auditory response? Use the a = 0.10 level of significance and TI-84 Plus calculator.

Part 1/4

Compute the least-squares regression line for predicting auditory (y) from visual (x). Round the slope and y-intercept values to at least four decimal places.

Regression line equation: y (hat) =

Part 2/4 will follow

Part 3/4 will follow

Part 4/4 will follow

Use the

-value method to test versus . Can you conclude that visual response is useful in predicting