Asked by James

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? What is the Null and alternative hypothesis.
Answered by PsyDAG
Lacking data. What was the mean and standard deviation of the change in cholesterol levels?

Answered by James
PsyDAG this is all the information that was given in the class.

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective?


Cholesterol Decreased No Cholesterol Decrease Total

Treatment 38 18 56

No treatment 30 28 58

Total 68 46 114

Answered by PsyDAG
Normal distribution not needed. Can do Chi-square (X^2) test.

https://www.google.com/search?client=safari&rls=en&q=chi+square+calculator&ie=UTF-8&oe=UTF-8&gws_rd=ssl
Answered by Anonymous
A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? What is the Null and alternative hypothesis.
Answered by Anonymous
A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective?


Cholesterol Decreased

No Cholesterol Decrease

Total


Treatment

38

18

56


No treatment

30

28

58


Total

68

46

114