The scores on a (hypothetical) vocabulary test of a group of 20 year olds and a group of 60 year olds are shown below. 20 yr olds 60 yr olds 27 26 26 29 21 29 24 29 15 27 18 16 17 20 12 27 13 Test the mean difference for significance using the .05 level. List the assumptions made in computing your answer.
The scores on a (hypothetical) vocabulary test of a group of 20 year olds and a group of 60 year olds are shown below. 20 yr olds 60 yr olds 27 26 26 29 21 29 24 29 15 27 18 16 17 20 12 27 13 Test the mean difference for significance using the .05 level. List the assumptions made in computing your answer.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The scores on a (hypothetical) vocabulary test of a group of 20 year olds and a group of 60 year olds are shown below.
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20 yr olds
|
60 yr olds
|
|
27
|
26
|
|
26
|
29
|
|
21
|
29
|
|
24
|
29
|
|
15
|
27
|
|
18
|
16
|
|
17
|
20
|
|
12
|
27
|
|
13
|
|
- Test the mean difference for significance using the .05 level.
- List the assumptions made in computing your answer.
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