*BE SURE TO SHOW YOUR WORK. 1) A psychologist is studying children's aggression in different play areas. She trains observers to rate children's aggression on a scale from 1 (low) to 10 (high), then has them observe preschool children randomly assigned to play in either the art or block play areas of the classroom. She obtains the following results: Art area (n=6) Block area (n=6) 1 4 4 4 2 3 6 5 3 5 6 5 1a) compute the mean, variance, and standard deviation for each group. 1c) Compute a t-test to see whether the block area results in significantly higher aggression.

*BE SURE TO SHOW YOUR WORK. 1) A psychologist is studying children's aggression in different play areas. She trains observers to rate children's aggression on a scale from 1 (low) to 10 (high), then has them observe preschool children randomly assigned to play in either the art or block play areas of the classroom. She obtains the following results: Art area (n=6) Block area (n=6) 1 4 4 4 2 3 6 5 3 5 6 5 1a) compute the mean, variance, and standard deviation for each group. 1c) Compute a t-test to see whether the block area results in significantly higher aggression.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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