Reference no: EM132386738

Personality researchers wondered if there were differences between "dog people" and "cat people" in how extraverted they were. To find out if there are any differences, researchers asked people to self-identify as cat or dog people and then complete a personality inventory. The results of the extraversion test (on a scale from 0-100) for the two types of person are presented below.

"Dog People" Sample: M = 83, SS = 360, n = 10

"Cat People" Sample: M = 74, SS = 720, n = 10

Assuming a normal population, test the hypothesis suggested by the description with alpha = .05.

a) Specify the null and alternative hypotheses.

b) Report the df, critical value, SE, test statistic

c) Report your decision in a sentence.