In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles? Crash Damage ($) Goliath Varmint Weasel 1,660 1,250 1,070 760 1,440 2,140 860 1,330 1,800 1,940 1,870 1,220 1,210 990 1,960 Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 2 decimal places.) Group Mean n Std. Dev Variance Goliath Varmint Weasel Total One-Factor ANOVA Source SS df MS F p-value Treatment Error Total Based on the given hypotheses, choose the right option. H0: μ1 = μ2 = μ3 H1: Not all the means are equal α = .05 Reject the null hypothesis if p-value > 0.05 Reject the null hypothesis if p-value < 0.05 On the basis of the above findings, we cannot reject the null hypothesis. False True
In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles? Crash Damage ($) Goliath Varmint Weasel 1,660 1,250 1,070 760 1,440 2,140 860 1,330 1,800 1,940 1,870 1,220 1,210 990 1,960 Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 2 decimal places.) Group Mean n Std. Dev Variance Goliath Varmint Weasel Total One-Factor ANOVA Source SS df MS F p-value Treatment Error Total Based on the given hypotheses, choose the right option. H0: μ1 = μ2 = μ3 H1: Not all the means are equal α = .05 Reject the null hypothesis if p-value > 0.05 Reject the null hypothesis if p-value < 0.05 On the basis of the above findings, we cannot reject the null hypothesis. False True
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 14PPS
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In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles?
Crash Damage ($) | ||
Goliath | Varmint | Weasel |
1,660 | 1,250 | 1,070 |
760 | 1,440 | 2,140 |
860 | 1,330 | 1,800 |
1,940 | 1,870 | 1,220 |
1,210 | 990 | 1,960 |
Fill in the missing data. (Round your p-value to 4 decimal places,
Group | Mean | n | Std. Dev | Variance |
Goliath | ||||
Varmint | ||||
Weasel | ||||
Total | ||||
One-Factor ANOVA | |||||
Source | SS | df | MS | F | p-value |
Treatment | |||||
Error | |||||
Total | |||||
Based on the given hypotheses, choose the right option.
H0: μ1 = μ2 = μ3
H1: Not all the means are equal
α = .05
-
Reject the null hypothesis if p-value > 0.05
-
Reject the null hypothesis if p-value < 0.05
On the basis of the above findings, we cannot reject the null hypothesis.
-
False
-
True
Based on the given hypotheses, choose the right option. H0: σ21 = σ22 = σ23 H1: Not all the variances are equal α = .0
-
Reject the null hypothesis if H < 15.5
-
Reject the null hypothesis if H > 15.5
Calculate the value of Hcalc. (Round your answer to 2 decimal places.)
Hcalc
On the basis of the above-determined Hcalc, we reject the null hypothesis.
-
True
-
False
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