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(b) Find the standard error of the difference between the means using Excel.
(d) Perform a t-test on these data using Excel. What is the value of t that you
(e) State your result on your spreadsheet.
(f) State your conclusion in plain English on your spreadsheet.
(g) Save the ﬁle as: GPA3.
Keller G. Statistics for Management and Economics. 8th ed. Mason, OH: South-Western Cengage
Zikmund WG, Babin BJ. Exploring Marketing Research. 10th ed. Mason, OH: South-Western
Cengage Learning; 2010.
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