Question 9 A completely randomized block design was conducted to compare the effects of five different stimuli on reaction time. Four people participated in the experiment, with each person subjected to each of the five stimuli in random order. The reaction times (in seconds) are listed. Stimulus Subject A B CDE 1. 0.7 0.8 1.0 1.O 0.5 2. 0.6 0.6 1.1 10 0.6 0.9 1.0 1.2 11 0.6 0.6 0.8 0.9 1.0 0.4 What is the null hypothesis? O There is no difference in the mean reaction times between the four people who participate in their stimuli A and D O There is no difference in the mean reaction times between the four people who participate in their stimuli B and C O There is no difference in the mean reaction times due to the four stimuli among the four people who participated O There is no difference in the mean reaction times between the four people who participate in the experiment

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Question 9
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A completely randomized block design was conducted to compare the effects of five
different stimuli on reaction time. Four people participated in the experiment, with
each person subjected to each of the five stimuli in random order. The reaction times
(in seconds) are listed.
Stimulus
Subject A B CDE
1.
0.7 0.8 1.0 1.0 0.5
2.
0.6 0.6 1.1 1.0 0.6
3.
0.9 1.0 1.2 11 0.6
0.6 0.8 0.9 1.0 0.4
What is the null hypothesis?
O There is no difference in the mean reaction times between the four people who participated
in their stimuli A and D
O There is no difference in the mean reaction times between the four people who participated
in their stimuli B and C
O There is no difference in the mean reaction times due to the four stimuli among the four
people who participated
O There is no difference in the mean reaction times between the four people who participated
in the experiment
Question 10
A completely randomized block design was conducted to compare the effects of five
different stimuli on reaction time. Four people participated in the experiment, with
each person subjected to each of the five stimuli in random order. The reaction times
(in seconds) are listed.
Stimulus
Subject A B CDE
0.7 0.8 1.0 1.0 0.5
2
0.6 0.6 1.1 1.0 0.6
3.
0.9 1.0 1.2 1.1 0.6
4
0.6 0.8 0.9 1.0 0.4
What is the proper conclusion in this case?
O The mean reaction time due to stimulus D is statistically significantly higher than the mean
reaction time due to stimulus A.
O The mean reaction times due to the five stimull come from populations having means that are
not the same.
O The mean reaction time due to stimulus Cis statistically significantly higher than the mean
reaction time due to stimulusE
O There is statistically significant evidence at alpha 0.05 that a difference does not exist in the
mean reaction times due to the five stimuli.
Transcribed Image Text:answer everything. will upvote Question 9 ts A completely randomized block design was conducted to compare the effects of five different stimuli on reaction time. Four people participated in the experiment, with each person subjected to each of the five stimuli in random order. The reaction times (in seconds) are listed. Stimulus Subject A B CDE 1. 0.7 0.8 1.0 1.0 0.5 2. 0.6 0.6 1.1 1.0 0.6 3. 0.9 1.0 1.2 11 0.6 0.6 0.8 0.9 1.0 0.4 What is the null hypothesis? O There is no difference in the mean reaction times between the four people who participated in their stimuli A and D O There is no difference in the mean reaction times between the four people who participated in their stimuli B and C O There is no difference in the mean reaction times due to the four stimuli among the four people who participated O There is no difference in the mean reaction times between the four people who participated in the experiment Question 10 A completely randomized block design was conducted to compare the effects of five different stimuli on reaction time. Four people participated in the experiment, with each person subjected to each of the five stimuli in random order. The reaction times (in seconds) are listed. Stimulus Subject A B CDE 0.7 0.8 1.0 1.0 0.5 2 0.6 0.6 1.1 1.0 0.6 3. 0.9 1.0 1.2 1.1 0.6 4 0.6 0.8 0.9 1.0 0.4 What is the proper conclusion in this case? O The mean reaction time due to stimulus D is statistically significantly higher than the mean reaction time due to stimulus A. O The mean reaction times due to the five stimull come from populations having means that are not the same. O The mean reaction time due to stimulus Cis statistically significantly higher than the mean reaction time due to stimulusE O There is statistically significant evidence at alpha 0.05 that a difference does not exist in the mean reaction times due to the five stimuli.
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