Does the color of cards affect a person's ability to sort the cards? Twelve volunteers were asked to sort two sets of 200 cards into two piles. One set of cards were bright red and bright green. The other set of cards were black and white. The order (red/green first or black/white first) was determined by a coin toss with ample time between the two tasks to lessen the effect of practice. The time (in seconds) to complete each of the two tasks are given in the table below. Completion time (in seconds) Volunteer 1 2 3 Red/Green 148 198 193 Black/White 136 182 186 4 5 6 7 8 9 10 11 12 128 206 158 214 167 207 173 190 139 133 198 162 196 163 199 161 183 144 Assuming the conditions for inference are met, what statistical test should be used to determine if there is a significant difference in the mean time required to sort the two sets of cards? (A) A chi-square goodness-of-fit test (B) A chi-square test of independence (C) A matched-pairs 1-test for means (D)A two-sample t-test for means (E) A linear regression I-test
Does the color of cards affect a person's ability to sort the cards? Twelve volunteers were asked to sort two sets of 200 cards into two piles. One set of cards were bright red and bright green. The other set of cards were black and white. The order (red/green first or black/white first) was determined by a coin toss with ample time between the two tasks to lessen the effect of practice. The time (in seconds) to complete each of the two tasks are given in the table below. Completion time (in seconds) Volunteer 1 2 3 Red/Green 148 198 193 Black/White 136 182 186 4 5 6 7 8 9 10 11 12 128 206 158 214 167 207 173 190 139 133 198 162 196 163 199 161 183 144 Assuming the conditions for inference are met, what statistical test should be used to determine if there is a significant difference in the mean time required to sort the two sets of cards? (A) A chi-square goodness-of-fit test (B) A chi-square test of independence (C) A matched-pairs 1-test for means (D)A two-sample t-test for means (E) A linear regression I-test
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Does the color of cards affect a person's ability to sort the cards? Twelve volunteers were asked to
sort two sets of 200 cards into two piles. One set of cards were bright red and bright green. The
other set of cards were black and white. The order (red/green first or black/white first) was
determined by a coin toss with ample time between the two tasks to lessen the effect of practice.
The time (in seconds) to complete each of the two tasks are given in the table below.
Completion time (in seconds)
Volunteer 1 2 3
Red/Green 148 198 193
Black/White 136 182 186
4 5 6 7 8 9 10 11 12
128 206 158 214 167 207 173 190 139
133 198 162 196 163 199 161 183 144
Assuming the conditions for inference are met, what statistical test should be used to determine if
there is a significant difference in the mean time required to sort the two sets of cards?
(A) A chi-square goodness-of-fit test
(B) A chi-square test of independence
(C) A matched-pairs 1-test for means
(D)A two-sample t-test for means
(E) A linear regression I-test
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