Suppose You Used a 9-Point Rating Scale to Compare Men

question 16

Multiple Choice

Suppose you used a 9-point rating scale to compare men who had an annual income over $50 000 (Group 1) with men who had an annual income less than or equal to $50 000 (Group 2) on their liking of a new product. If you studied 40 men in Group 1 and they had a mean of 7 and a standard deviation of 2.5, while the 35 men in Group 2 had a mean of 5 and a standard deviation of 1.4, what is the approximate value of using the t-test?

• A) 8.78
• B) 4.19
• C) 0.97
• D) 0.47

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