Mathematics, 18.07.2020 18:01, wwwclarajohnson39
A health psychologist investigates the number of viral infections people contract as a function of the amount of psychological stress they experience during a one-year period. She wants to see if there are significant differences (at the significance level of 0.05) in the mean number of viral infections depending on the amount of stress. She obtained the following data (N=20):
Negligible Minimal Moderate Severe
Stress Stress Stress Stress
2 4 6 5
1 3 5 7
4 2 7 8
1 3 5 4
2 2 6 8
Please answer the following questions:
(a) What are the null and alternative hypotheses?
(b) What assumptions should be made? Provide 4 assumptions.
1)
2)
3)
4)
(c) What are the critical values? (Specify dfbetween and dfwithin first)
(d) Specify the decision rules?
(e) Computation: Provide the ANOVA table
Source SS df MS F
Between
Within N/A
Total
(f) What are your decisions? Provide interpretation of your results.
Answers: 3
Mathematics, 21.06.2019 18:30, Division101
Write the rational number in lowest terms 99/-15
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Mathematics, 21.06.2019 19:10, madimocaj
Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?
Answers: 2
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