Mathematics, 18.08.2020 16:01 auviannadority13
In an experiment designed to study the effects of illumination level on task performance, subjects were required to insert a fine-tipped probe into the eyeholes of ten needles in rapid succession both for a low light level with black background and a higher level with a white background. Each data value is the time (sec) required to complete the task.
Subject
1 2 3 4 5 6 7 8 9
Black 25.0 42.0 27.5 26.5 25.0 30.5 26.5 21.0 32.0
White 16.5 25.0 24.5 19.5 16.0 20.5 18.0 19.5 22.0
d = 8.5 17.0 3.0 7.0 9.0 10.0 8.5 1.5 10.0
Does the data indicate that the higher level of illumination yields a decrease of more than 5 sec in true average task completion time? Test the appropriate hypotheses using a level of significance level α = 0.05.
Parameter:
Null Hypothesis:
Alternative Hypothesis:
Test Statistic:
Reject Region:
Calculate:
Decision:
P-value:
Answers: 2
Mathematics, 21.06.2019 23:00
If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.
Answers: 1
Mathematics, 22.06.2019 01:00
Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet
Answers: 3
Mathematics, 22.06.2019 04:30
Aski resort is charging $37.50 to rent a snowmobile for 5 hours. at this rate what will be the cost for a family of 5 to rent snowmobiles for 3 hours on the first day of their vacation and 4 hours for on the last day of their vacation
Answers: 1
In an experiment designed to study the effects of illumination level on task performance, subjects w...
Social Studies, 09.12.2021 17:00
Computers and Technology, 09.12.2021 17:00
Mathematics, 09.12.2021 17:00
SAT, 09.12.2021 17:00
Biology, 09.12.2021 17:00
Computers and Technology, 09.12.2021 17:00
SAT, 09.12.2021 17:00