Part A: Hypothesis Testing using one-sample t-test

1. A total of 8 people are tested on their ability to correctly recall as many words as they can from a previously learned list of words. Their individual scores are listed below. How do the scores compare to the comparison mean of 35? Calculate the t-value by hand and compare it to the critical t-value and indicate whether the test is significant or not. Assume a two-tailed hypothesis with = .05. (3 marks)

Words

25 22 32 28 25 32 27 33

Calculate the effect size (i.e., Cohen's d) and indicate the relative size of the effect. (1 mark)