Conduct a hypothesis test to determine if chewing gum makes you less accurate while target shooting. Each of the following participants shot at a target (maximum score of 100) while chewing gum and without. Assume that all conditions of the test have been met. Use this data for questions 8-9.
gum
no gum
difference
Participant #1
79
80
-1
Participant #2
95
94
1
Participant #3
85
87
-2
Participant #4
82
84
-2
Mean
85.25
86.25
-1
Std dev
6.95
5.91
1.41
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Question 8
1 pts
What is the value of the t-statistic?
t = 2.871
t = 1.837
t = -3.792
t = -1.418
Which one of these is not a condition of an independent samples t-test?
The population must be normally distributed, or a have a sample larger than 25.
You must have the same number of responses from each group.
Samples must be randomly and independently observed.
Responses from participants in separate groups are independent.