A researcher is interested in determining whether course delivery mode (online v on-ground) has had an effect on students' final exam scores. Below are the scores for each group. Conduct a two-samples t-test to determine if there is a significant difference between average scores in both groups. Assume alpha =0.05 Copy/paste the data below into an Excel Sheet (or Google Sheets) and run a two-samples t-test. Copy/paste the results into the response window below. Be sure to include your interpretation of the results. In your answer, state the null and the research hypotheses and explain whether the results of the two-sample test led you to reject or fail to reject the null hypothesis. Online Class On-ground Class 87.99 88.30 71.15 84.70 70.21 84.04 64.44 95.62 76.02 92.86 73.10 79.81 84.50 81.15 70.97 55.00 82.83 77.66 94.22 91.79 92.71 80.55 79.48 77.20

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher is interested in determining whether course delivery mode (online v on-ground) has had an effect on students' final exam scores.

Below are the scores for each group.

Conduct a two-samples t-test to determine if there is a significant difference between average scores in both groups.

Assume alpha =0.05

Copy/paste the data below into an Excel Sheet (or Google Sheets) and run a two-samples t-test.

Copy/paste the results into the response window below. Be sure to include your interpretation of the results. In your answer, state the null and the research hypotheses and explain whether the results of the two-sample test led you to reject or fail to reject the null hypothesis.

Online Class	On-ground Class
87.99	88.30
71.15	84.70
70.21	84.04
64.44	95.62
76.02	92.86
73.10	79.81
84.50	81.15
70.97	55.00
82.83	77.66
94.22	91.79
92.71	80.55
79.48	77.20

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

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