# Data Analysis in Psychology:

June 22, 2020
###### Correlations and Regressions
June 22, 2020

Clearly indicate the values of important terms, including but not limited to
the standard error of the mean, test statistic, and critical test score. For
both questions, a two-tailed test is used with the alpha level set at 0.05.

1. A
group of individuals listened to two albums (one from The Rolling Stones, the
other from The Beatles), and rated their enjoyment of each on a scale of 1
(hated it) to 10 (loved it). Is there a statistically significant difference in
enjoyment scores between the artists?

 Table 1 Level of enjoyment upon listening to an album from either The Rolling Stones or The Beatles Subjects The Rolling Stones The Beatles Matt 8 4 Melanie 2 10 Mark 5 7 Murphy 2 6 Mitch 3 10 Marilyn 1 4 Missy 7 5 Margaret 3 8 Mick 3 6 Shamus 4 6

2. Two
tutorials completed an online quiz in which possible grades ranged from 0 to
20. Did one tutorial do significantly better or worse on the quiz than the
other tutorial?

 Table 2 Scores on a recent online quiz between Tutorials 1 and 2 Tutorial 1 Tutorial 2 15 4 8 14 5 9 13 10 16 3 4 3 17 7 11 5 8 7 9 7