Question: Five students were tested before and after taking a class to improve their study habits.They were given articles to read which contained a known number

Five students were tested before and after taking a class to improve their study habits.They were given articles to read which contained a known number of facts in each story.After the story each student listed as many facts as he/she could recall.The following data was recorded.

Before 10 12 14 16 12

Atter 15 14 17 17 20

a. What is the alternative hypothesis?

b. What is the null hypothesis?

c. What is your conclusion, using = 0.052 tail?

d. What type error may you be making because of your conclusion in part c?Please show all work.

e. What is the size of effect, using Cohen's d?

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