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Comparing Means Worksheet Assignment Help

The following questions require that you access Microsoft Excel for analysis. The team must work together to solve these questions. The data set for this assignment is located in the Pulse Rate Dataset.

1. John is interested in determining if frequency of exercise affects pulse rate. John randomly samples individuals at a local gym to ask if they will participate in his study. 55 individuals agree, and they are divided into three groups of exercisers: 1 = high frequency, 2 = moderate frequency, 3 = low frequency. Next, John measures their pulse after their workout. Do pulse rates differ among individuals who exercise with high frequency versus those who exercise moderately versus those who exercise with low frequency?

Note: Make sure you adjust the data so that there are three exercise variables (one for each level).

Conduct a one-way ANOVA to investigate the relationship between exercise frequency (Exercise) and pulse rate (Pulse1). Conduct Tukey's HSD post hoc tests, if necessary. On the output, identify the following:

a. F ratio for the group effect

b. Sums of squares for the exercise effect

c. Mean for moderate exercisers

d. P value for exercise effect

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image 1.png

 

image 2.pngF-ratio for the group effect is 0.552

Sums of squares for the exercise effect is 126.883

Mean for moderate exercisers 63.442

P-value for the exercise effect is 0.579

Summary

The findings from one way Anova show that the significant p-value is 0.579 which is greater than the significant p-value of 0.05. In this case the null hypothesis is accepted and conclude that there is no mean differences in pulse rate among individuals who exercise with high frequency, moderate frequency and low frequency. The computed F-statistics is 0.552 which is greater than the critical region. The degrees of freedom for this study is 2.

The post hoc test reveals that there is no significant interaction between the three groups. The interaction between high (1) and moderate frequency (2) is 1.00 >0.05. The interaction between high frequency (1) and low frequency (3) is 0.78> 0.05. The interaction between moderate frequency and low frequency is 0.569.

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