A researcher wants to examine the impact of internet use on heart rate. Students

Question

A researcher wants to examine the impact of internet use on heart rate. Students are asked how much they used the internet the hour prior to beginning the study and then grouped into three categories( 31-60 minutes per hour, 1-30 minutes per hour, and no internet use.) The researcher then measured their heartbeat per minute. Assume a two-tailed test and .05 level of significance.

Based on the following data, write up a results section.

Answer should include type of analysis, variable means and standard deviations, results, significance, and effect size.

9.64305

Between Groups

Eta-squared: .269

Time N Mean Standard Deviation 31-60 mins 10 66.00 9.66092 1-30 mins 10 54.00 8.43274 no internet 10 59.00 7.37865 Total 30 59.6667

9.64305

Explanation / Answer

Solution:

Null Hypothesis (Ho): All the means are equal.

Alternative Hypothesis (Ha): At least one of them is different.

Test Statistics

F = 4.980

P-value = 0.014

Since p-value is less than 0.05 significance level, we reject Ho.

Hence, we can conclude that the impact of internet has on heart rate.

Eta-squared = 0.269 (small effect size)

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