The weights (in pounds) of elght vehicles and the variabilities of their braking distances (in feet) when stopping on a wet surface are shown in the table. At
Setup the hypothesis for the test
Calculate the test statistic
Cilculate the Pivalue
Final Answer: The p-value is
Step 1 :Setup the hypothesis for the test:
Step 2 :Calculate the test statistic:
Step 3 :Calculate the degrees of freedom for this test:
Step 4 :Calculate the p-value using the t-distribution with the given test statistic and degrees of freedom:
Step 5 :Compare the p-value with the significance level
Step 6 :Conclude that there is a significant linear correlation between vehicle weight and variability in braking distance on a wet surface.
Step 7 :Final Answer: The p-value is