Among the 180 participating college students, 90 students were labeled as “tab collectors" (Group 1) and 90 students were labeled as "streamlined searchers" (Group 2). The researchers would like to use the results of this study to assess if the population proportion of students who completed a task among “tab collectors" (Group 1) is less than that of students labeled "streamlined searchers" (Group 2), at a 1% significance level. Since you are currently enrolled in a statistics course, they ask for your help in understanding the analyses. The following table displays the observed counts of task completion for the two groups. Task Completed Task Incomplete Total 1 = Tab Collectors 49 41 90 2 = Streamlined Searchers 61 29 90 Total 110 70 180

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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Answer question 3.5

Among the 180 participating college students, 90 students were labeled as “tab
collectors" (Group 1) and 90 students were labeled as "streamlined searchers"
(Group 2). The researchers would like to use the results of this study to assess if
the population proportion of students who completed a task among "tab
collectors" (Group 1) is less than that of students labeled "streamlined searchers"
(Group 2), at a 1% significance level.
Since you are currently enrolled in a statistics course, they ask for your help in
understanding the analyses. The following table displays the observed counts of
task completion for the two groups.
Task Completed
Task Incomplete
Total
1 = Tab Collectors
49
41
90
2 = Streamlined
Searchers
61
29
90
Total
110
70
180
Transcribed Image Text:Among the 180 participating college students, 90 students were labeled as “tab collectors" (Group 1) and 90 students were labeled as "streamlined searchers" (Group 2). The researchers would like to use the results of this study to assess if the population proportion of students who completed a task among "tab collectors" (Group 1) is less than that of students labeled "streamlined searchers" (Group 2), at a 1% significance level. Since you are currently enrolled in a statistics course, they ask for your help in understanding the analyses. The following table displays the observed counts of task completion for the two groups. Task Completed Task Incomplete Total 1 = Tab Collectors 49 41 90 2 = Streamlined Searchers 61 29 90 Total 110 70 180
Before collecting any data, what is the probability of a Type I error?
1%
O 5%
O 10%
O Cannot be determined from the given information
Transcribed Image Text:Before collecting any data, what is the probability of a Type I error? 1% O 5% O 10% O Cannot be determined from the given information
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