Answered: uppose the National Transportation…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars, midsize cars, and full-size cars. It collects a sample of three for each of the treatments (cars types). Using the hypothetical data provided below, test whether the mean pressure applied to the driver’s head during a crash test is equal for each types of car. Use a significant level of 5%. Compact cars (643; 655; 702). Mid-size cars (469; 427; 525). Full-size cars (484; 456; 402). SST = 86049.556. TSS = 96303.556. What conclusion can be drawn from this scenario? A. Do not Reject H0 and conclude that all three populations have different mean pressure. B. Reject H0 and conclude that at least two of populations differs from the others in terms of their mean pressure. C. Reject H0 and conclude that there is insufficient evidence for differences in mean pressure for the three populations. D. Do not reject H0 and conclude that the mean pressure in these three populations are not the same.

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