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 cars each of the cars types. The data below displays the frontal crash test performance percentages. Test whether there are statistical differences in the frontal crash test performance for each type of car.
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 cars each of the cars types. The data below displays the frontal crash test performance percentages. Test whether there are statistical differences in the frontal crash test performance for each type of car.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 1GP
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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 cars each of the cars types. The data below displays the frontal crash test performance percentages. Test whether there are statistical differences in the frontal crash test performance for each type of car.
Car Sizes
| Compact Cars | Midsize Cars | Full-Size Cars |
|---|---|---|
| 95 | 95 | 93 |
| 98 | 98 | 97 |
| 87 | 98 | 92 |
| 99 | 89 | 92 |
| 99 | 94 | 84 |
| 94 | 88 | 87 |
| 99 | 93 | 88 |
| 98 | 99 | 89 |
What conclusions can we draw from the follow-up t-tests?
There is/are a total of ______ statistically significant difference(s) between car type pairs out of the follow-up t-tests.
Options:
a) 1
b) 2
c) 3
d) 4
e) 5
f) 6
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