The appropriate statistical test for whether the mean rating of guilts are greater for unattractive defendants than for attractive is:
B. 1 tailed t-test.
<h3>What are the hypothesis test?</h3>
At the null hypothesis, it is tested if the mean rating of guilt will not be higher for unattractive defendants than for attractive defendants, that is:
At the alternative hypothesis, it is tested if the rating is greater, that is:
We are comparing the means, hence a t-test is used. We are testing if one is greater than other(not different), hence a 1-tailed test is used, and option B is correct.
More can be learned about hypothesis tests at brainly.com/question/13873630
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Answer:
x=4
Step-by-step explanation:
5x+20-13=2x+19
3x+20-13=19
3x+7=19
3x=12
x=4
Answer:
a = 7
b = 7
Step-by-step explanation:
in a 45-45-90° triangle, the length of legs to hypotenuse is 1 :
Answer:
Ya the person above me is right 4cd
The reference angle is the positive angle formed by the terminal side of the angle and x-axis:
7 π / 6 = 210° = 180° + 30°
Answer: The reference angle is 30°.