Students in QSO 510 are assigned to observe the effect of various types of music on relaxation mood in patients who are in the early and middle stages of Alzheimer's disease at a certain Nursing Home facility. A number of patients were selected to participate in the study based on their stages of Alzheimer's disease. Three forms of music were tested: R&B, Blues, and Reggae. While listening to music, relaxation levels were recorded for the patients with a high score indicating a higher level of relaxation. Scores are recorded below. Group Reggae Blues R&B Early Stage Alzheimer's 2124221820 9121059 2926302426 Middle Stage Alzheimer's 2220251820 141811913 1518201319 Use Excel’s ToolPak to compute Two-Way ANOVA and submit your statistical output. Are there any significant main effects or an interaction effect? Interpret your answer.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Students in QSO 510 are assigned to observe the effect of various types of music on relaxation mood in patients who are in the early and middle stages of Alzheimer's disease at a certain Nursing Home facility.
A number of patients were selected to participate in the study based on their stages of Alzheimer's disease. Three forms of music were tested: R&B, Blues, and Reggae. While listening to music, relaxation levels were recorded for the patients with a high score indicating a higher level of relaxation. Scores are recorded below.
|
Group |
Reggae |
Blues |
R&B |
|
Early Stage Alzheimer's |
21 |
9 |
29 |
|
Middle Stage Alzheimer's |
22 |
14 |
15 |
Use Excel’s ToolPak to compute Two-Way ANOVA and submit your statistical output.
- Are there any significant main effects or an interaction effect?
- Interpret your answer.
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