MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Suppose u1 and uz 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 0.01 to test Ho: H1 - u2 = -10 versus
Ha: H1 - 42 < -10 for the following data: m = 5, x = 114.8, s1 = 5.07, n = 5, y = 129.5, and s2 = 5.39.
n USE SALT
Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.)
t =
P-value =
State the conclusion in the problem context.
Reject Ho. The data suggests that the difference between mean stopping distances is less than -10.
Reject Ho: The data does not suggest that the difference between mean stopping distances is less than -10.
o Fail to reject Ho. The data suggests that the difference between mean stopping distances is less than -10.
Fail to reject Ho. The data does not suggest that the difference between mean stopping distances is less than -10.
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Transcribed Image Text:Suppose u1 and uz 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 0.01 to test Ho: H1 - u2 = -10 versus Ha: H1 - 42 < -10 for the following data: m = 5, x = 114.8, s1 = 5.07, n = 5, y = 129.5, and s2 = 5.39. n USE SALT Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.) t = P-value = State the conclusion in the problem context. Reject Ho. The data suggests that the difference between mean stopping distances is less than -10. Reject Ho: The data does not suggest that the difference between mean stopping distances is less than -10. o Fail to reject Ho. The data suggests that the difference between mean stopping distances is less than -10. Fail to reject Ho. The data does not suggest that the difference between mean stopping distances is less than -10.
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