Comparing two independent sample mean

Problem 1. In the given data shown below, Is there a significant difference between male and female average score.

Name Gender Score

Dan 2 95

Mimi 1 87

Leah 1 84

Gene 2 70

Arnold 2 92

Richard 2 89

Linda 1 79

Juan 2 87

Martha 1 92

Jane 1 85

Mark 2 78

Leo 2 60

(Note: 2 - Male1 - Female)

II. ANOVA test and Post Hoc Analysis (Show the Tukey, Scheffe' and Duncan Multiple Range Test)

Problem 2. In the data shown below, is there a significant difference between materials A, B, C, and D. if there is a significant difference, then determine the difference.

Material N Mean Standard Deviation

A 6 37.73 34.37

B 6 31.57 28.20

C 6 35.98 32.62

D 6 41.07 37.70