A cognitive psychologist was interested in the ability to solve puzzles. They selected 24 college sophomores and matched them on the basis of IQ and assigned them, in groups of four, to one of four puzzle conditions (six blocks of four). The psychologist wants to make sure that all the puzzles are equally difficult. The dependent variable was the amount of time it took for a subject to complete the puzzle. The data are presented below. Were there differences in puzzle
A cognitive psychologist was interested in the ability to solve puzzles. They selected 24 college sophomores and matched them on the basis of IQ and assigned them, in groups of four, to one of four puzzle conditions (six blocks of four). The psychologist wants to make sure that all the puzzles are equally difficult. The dependent variable was the amount of time it took for a subject to complete the puzzle. The data are presented below. Were there differences in puzzle
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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Question
Transcribed Image Text:Psychology 215 – Basic Statistical Methods - Andrzejewski
Problem Set #10
Submit a document with the answers to the following questions along with an Excel workbook
with the appropriate computations. Be sure to report the appropriate statistics.
1. A cognitive psychologist was interested in the ability to solve puzzles. They selected 24
college sophomores and matched them on the basis of IQ and assigned them, in groups of four,
to one of four puzzle conditions (six blocks of four). The psychologist wants to make sure that
all the puzzles are equally difficult. The dependent variable was the amount of time it took for a
subject to complete the puzzle. The data are presented below. Were there differences in puzzle
difficulty at the .05 level? Make sure to complete a 6-step hypothesis test.
Block
1
2
3
4
5
-327872
1
25
25
2
34
38
33
32
36
34
Puzzle
3
31
36
30
41
39
40
4
40
37
32
38
46
39
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