The Mean Stubbornness Scores for the 8 Individuals in Sample

question 15

Multiple Choice

The mean stubbornness scores for the 8 individuals in sample A was 36. The mean for sample B, consisting of 12 individuals, was 42. A two-tailed independent samples t test was conducted and t_obt = +2.33. Given an α = .05, we can conclude that

• A) there was no significant difference between the means.
• B) there was a significant difference between the means.
• C) the null hypothesis should be rejected.
• D) both "b" and "c" are correct.

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