The Acme Company claims that its new reading lamp increases reading speed; you want to test this. You will record how long (in seconds) it takes for participants to read a 1,000-word essay.
Participants will be randomly assigned to one of two groups: Group 1 will be the control group; they will read the essay using regular room lighting. Those in Group 2 will read the essay using the Acme lamp.

Data set: Ch 04 – Exercise 09A.sav
Codebook
Variable: Group
Definition: Lighting group assignment
Type: Categorical (1 = Room lighting, 2 = Acme lamp)
Variable: Seconds
Definition: The time it takes to read the essay
Type: Continuous
a. Write the hypotheses.
b. Run each criterion of the pretest checklist (normality, homogeneity of variance, and n) and discuss your findings.
c. Run the t test and document your findings (ns, means, and Sig. [p value]).
d. Write an abstract under 200 words detailing a summary of the study, the t test results, hypothesis resolution, and implications of your findings.