Suppose µ, and µz are true mean stopping distances (in feet) 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: Họ: H1- H2 = -10 Car Type 1: m = 6, x = 115.7, s, = 5.03 Hạ: H1- H2 < -10 Car Type 2: n = 6, ỹ = 129.3, and s, = 5.38 Provide an explanation for the result of the test in terms of Car 1 and Car 2's stopping distances.
Suppose µ, and µz are true mean stopping distances (in feet) 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: Họ: H1- H2 = -10 Car Type 1: m = 6, x = 115.7, s, = 5.03 Hạ: H1- H2 < -10 Car Type 2: n = 6, ỹ = 129.3, and s, = 5.38 Provide an explanation for the result of the test in terms of Car 1 and Car 2's stopping distances.
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
Transcribed Image Text:Suppose µ, and µz are true mean stopping distances (in feet) 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:
Họ: H1- H2 = -10
Car Type 1: m = 6, x = 115.7, s, = 5.03
Hạ: H1- H2 < -10
Car Type 2: n = 6, ỹ = 129.3, and s, = 5.38
Provide an explanation for the result of the test in terms of Car 1 and Car 2's stopping distances.
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