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In a study analyzed by the Statistics Consulting Center at Virginia Tech, a group of subjects was asked to complete a certain task on the computer. The response measured was the time to completion. The purpose of the experiment was to test a set of facilitation tools developed by the Department of Computer Science at the university. There were 10 subjects involved. With a random assignment, five were given standard procedure for completion of the task. The other five were asked to do that task with the use of the facilitation tools. The data on the completion times for the task are given here. Group 1 (Standard-Procedure) 161 169 174 158 163 Group 2 (Facilitation Tool) 132 162 134 138 133 Assuming that the population distributions are normal and variances are the same for the two groups, support or refute the conjecture that the facilitation tools increase the speed with which the task can be accomplished.

In a study analyzed by the Statistics Consulting Center at Virginia Tech, a group of subjects was asked to complete a certain task on the computer. The response measured was the time to completion. The purpose of the experiment was to test a set of facilitation tools developed by the Department of Computer Science at the university. There were 10 subjects involved. With a random assignment, five were given standard procedure for completion of the task. The other five were asked to do that task with the use of the facilitation tools. The data on the completion times for the task are given here. Group 1 (Standard-Procedure) 161 169 174 158 163 Group 2 (Facilitation Tool) 132 162 134 138 133 Assuming that the population distributions are normal and variances are the same for the two groups, support or refute the conjecture that the facilitation tools increase the speed with which the task can be accomplished.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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In a study analyzed by the Statistics Consulting Center at Virginia Tech, a group of subjects was asked to complete a certain task on the computer. The response measured was the time to completion. The purpose of the experiment was to test a set of facilitation tools developed by the Department of Computer Science at the university. There were 10 subjects involved. With a random assignment, five were given standard procedure for completion of the task. The other five were asked to do that task with the use of the facilitation tools. The data on the completion times for the task are given here. Group 1 (Standard-Procedure) 161 169 174 158 163 Group 2 (Facilitation Tool) 132 162 134 138 133 Assuming that the population distributions are normal and variances are the same for the two groups, support or refute the conjecture that the facilitation tools increase the speed with which the task can be accomplished.
4. In a study analysed by the Statistics Consulting Center at Virginia Tech, a group of subjects was asked to complete a certain task on the computer. The response measured was the time to completion. The purpose of the experiment was to test a set of facilitation tools developed by the Department of Computer Science at the university. There were 10 subjects were involved. With a random assignment, five were given standard procedure for completion of the task. The other five were asked to do that task with the use of the facilitation tools. The data on the completion times for the task are given here. Group 2 (Standard Procedure) (Facilitation Tool) Group 1 161 132 169 174 162 134 138 158 163 133 Assuming that the population distributions are normal and variances are the same for the two groups, support or refute the conjecture that the facilitation tools increase the speed with which the task can be accomplished.
Transcribed Image Text:4. In a study analysed by the Statistics Consulting Center at Virginia Tech, a group of subjects was asked to complete a certain task on the computer. The response measured was the time to completion. The purpose of the experiment was to test a set of facilitation tools developed by the Department of Computer Science at the university. There were 10 subjects were involved. With a random assignment, five were given standard procedure for completion of the task. The other five were asked to do that task with the use of the facilitation tools. The data on the completion times for the task are given here. Group 2 (Standard Procedure) (Facilitation Tool) Group 1 161 132 169 174 162 134 138 158 163 133 Assuming that the population distributions are normal and variances are the same for the two groups, support or refute the conjecture that the facilitation tools increase the speed with which the task can be accomplished.
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