Question

2. Researchers want to know if there is a difference in comprehension among student, leering computer programn based on the style ol test. They randomly divide 36 stadents oll simila education level, age, software using a visual marvaal and group 2 individuals learned the softwrare using a bwwhual manual The following data represent scores that the shudents recelved on an eam given to them after they stadied the manuals A normal probability plot for the data and a boxplot indicate that the differences are approximately normally distributed and there are no outliers and so on, into two groups of 18 each. Group 1 individuals learned the Visual Manual Textual Marmaal 1.08 60.35 76.60 57.60 44.85 75.21 75.28 57.07 123 57 40 20 43.58 80.30 52.20 67.30 60.82 49.48 49.57 4201 61.16 hypothesis that there is a statistically significant difference between the types of manuals a. What type of test will you use? b. Use StatCrunch to complete the table Textual Manual Visual Manual Sample Sample Mean Mean Sample Sample standard standard Deviation Deviation s I- Based on the sample means and sample standard deviations, do you think the difference is statistically different? Why or why not? c. State H and H d. State the p-value

Answer 1

a. Here we need to use unpaired two sample t-test as we need to compare the mean of two samples where 36 students were randomly divided.

Done rest of the analysis below in R

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