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ANOVA - Xynamine

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1- Given below are pulse rate for a placebo group the researcher selected all men in order to obtain more consistence results that do not have a confounding variable of gender, to test the effect of Xynamine - an new drug designed to lower pulse rate - one group was treated with drug Xynamine in 10 -mg doses, and a group of men treated with 20-mg. pulse rates are randomly distributed with a mean of 70 beats per minute and 11 beats per minutes is the standard deviation. The research summary states that the drug is effective based on this evidence: The placebo group has a mean pulse rate of 68.9 which is close to the value of 70 (the mean in general). But the group treated with 10-mg of the drug has lower mean of 66.2 and the group treated with 20-mg has the lowest of 65.2.

Placebo Group 10-mg Treatment group 20-mg treatment group
77 67 72
61 48 94
66 79 57
63 67 63
81 57 69
75 71 59
66 66 64
79 85 82
66 75 34
75 77 76
48 57 59
70 45 53

Analyze the results using one way ANOVA.

Does two way ANOVA work? Why or why not?

Does it appear that there is a sufficient evidence to support the claim that the drug is lowers pulse rate?

Are there any serious problems with the design of the experiment/ given that only males were involved with the experiments?

Do the results apply to females?

The researcher compared the post treatment pulse rate to the mean pulse rate for adults male, is there a better way to measure the drug's effectiveness in lowering the pulse rate?

How would you characterize the overall validity results, should the drug be approved? Write a brief report summarizing your findings.

https://brainmass.com/statistics/analysis-of-variance/147570

Solution Preview

1- Given below are pulse rate for a placebo group the researcher selected all men in order to obtain more consistence results that do not have a confounding variable of gender, to test the effect of Xynamine - an new drug designed to lower pulse rate - one group was treated with drug Xynamine in 10 -mg doses, and a group of men treated with 20-mg. pulse rates are randomly distributed with a mean of 70 beats per minute and 11 beats per minutes is the standard deviation. The research summary states that the drug is effective based on this evidence: The placebo group has a mean pulse rate of 68.9 which is close to the value of 70 (the mean in general). But the group treated with 10-mg of the drug has lower mean of 66.2 and the group treated with 20-mg has the lowest of 65.2.

Placebo Group 10-mg Treatment group 20-mg treatment group
77 67 72
61 48 94
66 79 57
63 67 63
81 57 69
75 71 59
66 66 64
79 85 82
66 75 34
75 77 76
48 57 59
70 45 53

Analyze the results using one way ANOVA.

I used SPSS to solve this problem, but you can use any statistical software program that can do ANOVA.

ANOVA is used to test if ...

\$2.19

DATA to DECISION - drug Xynamine, ANOVA

From DATA to DECISION
Critical Thinking: Should you approve this drug?

Placebo 10mg 20mg
Treatment Treatment
Group Group Group
77 67 7
61 48 94

66 79 57

63 67 63

81 57 69

75 71 59

66 66 64

79 85 82

66 75 34

75 77 76

48 57 59

70 45 53

Consider the development of Xynamine—a new drug designed to lower pulse rates. In order to obtain more consistent results that do not have a confounding variable of gender, the drug is tested using males only. Given below are pulse rates for a placebo group, a group of men treated with Xynamine in 10 mg doses, and a group of men treated with 20 mg doses of Xynamine.

1. Use Excel or SAS to perform the one-way analysis of variance (ANOVA) for the data.
APA format is required, and solid academic writing is expected
2. Analyze the Results
Analyze the data using the methods of this chapter. (One-way analysis of variance (ANOVA))
Based on the results, write a brief report summarizing your findings minimum 500 words.
A. Does it appear that there is sufficient evidence to support the claim that the drug lowers pulse rates?
B. Are there any serious problems with the design of the experiment?
C. Given that only males were involved in the experiment, do the results also apply to females?
D. The project manager compared the post-treatment pulse rates to the mean pulse rate for adult males.
E. Is there a better way to measure the drug's effectiveness in lowering pulse rates?
F. How would you characterize the overall validity of the experiment?
G. Based on the available results, should the drug be approved?
Minimum of three citations required

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