Mathematics, 11.07.2019 22:30, phil820

Suppose m1 and m2 are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. use the two-sample t test at significance level .01 to test h0: m1- m2 =-10 versus ha: m1 − m2 < −10 for the following data: m = 6, x =115.7, s1 = 5.03, n 5 6, y = 129.3, and s2 = 5.38. calculate the test statistic and determine the p-value.

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Suppose m1 and m2 are true mean stopping distances at 50 mph for cars of a certain type equipped wit...