Recent research has demonstrated that music-based physical training for elderly people can improve balance and walking efficiency and reduce the risk of falls (Trombetti et al., 2011). As part of the training, participants walked in time to music and responded to changes in the music's rhythm during a 1-hour per week exercise program.
After 6 months, participants in the training group increased their walking speed and their stride length compared to individuals in the control group. The following data are similar to the results obtained in the study.

Do the results indicate a significant difference in the stride length for the two groups? Use a two-tailed test with a = .05.

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Control Grou Stride Leng Exercise Group Stride Length 24 25 22 24 26 23 20 23 26 17 2 22 20 16 21 17 22 19 24 23 18 23 16 20 23 28 25 23 2519 17 16