A study compared the reaction times (in seconds) of drivers using three different types of driving simulators: Basic, Intermediate, and Advanced. Each driver completed a reaction test under similar conditions. The reaction times are:Basic Simulator: 2.3,2.6,2.4,2.5,2.22.3, 2.6, 2.4, 2.5, 2.2Intermediate Simulator: 2.1,2.3,2.2,2.2,2.42.1, 2.3, 2.2, 2.2, 2.4Advanced Simulator: 2.7,2.5,2.6,2.8,2.92.7, 2.5, 2.6, 2.8, 2.9At the 0.010.01 significance level, use the Kruskal-Wallis test to test the claim that the median driver reaction time is the same across all three simulators.

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Problem 41Multiple Choice

A study compared the reaction times (in seconds) of drivers using three different types of driving simulators: Basic, Intermediate, and Advanced. Each driver completed a reaction test under similar conditions. The reaction times are:
Basic Simulator: $2.3 comma 2.6 comma 2.4 comma 2.5 comma 2.2$
Intermediate Simulator: $2.1 comma 2.3 comma 2.2 comma 2.2 comma 2.4$
Advanced Simulator: $2.7 comma 2.5 comma 2.6 comma 2.8 comma 2.9$
At the $0.01$ significance level, use the Kruskal-Wallis test to test the claim that the median driver reaction time is the same across all three simulators.

We reject the null hypothesis. There is a significant difference in median reaction times among the simulators.

We fail to reject the null hypothesis. There is no significant difference in median reaction times.

The Kruskal-Wallis test is inappropriate because the data are normally distributed.

The test statistic is smaller than the critical value, so we cannot conclude that medians differ.

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