Hypothesis Testing for Analyzing Association

Hypothesis Testing for Analyzing Association

​Practice Exercise

by CZARINA MAXIMO

​Instructions

​1. In this practice exercise, you will be asked to answer questions related to what you have learned about the topic.

​2. Please write your department and first and last name so we can consider your participation in this activity as your attendance (an Excel file is generated with your scores).

​3. Don't worry. This is not graded but please do your best in order to check the effectivity of the instructions and teaching and learning activity.

​4. Good luck!

Poll

Department

• physical therapy

• occupational therapy

• speech and language pathology

Open Ended

Name (LAST NAME, first name)

Multiple Select

You wish to examine the relationship between the area of hospital (square meters) and patient capacity. Sample data from 7 hospitals are collected.

Identify the two variables in this study.

• area of the hospital

• relationship

• patient capacity

• 7 hospitals

Multiple Choice

You wish to examine the relationship between the area of hospital (square meters) and patient capacity. Sample data from 7 hospitals are collected. You wanted to do both a correlational and regression analyses.

How will you write your research question to match your intended correlational analysis?

• What is the number of patient capacity in terms of number of beds across different wards?

• Is there a relationship between the hospital area with the patient capacity?

• What is the effect of the hospital area with the patient capacity.

Multiple Choice

For the regression analysis, what information can help you predict the patient capacity given the hospital area?

• correlation co-efficient

• p-value

• slope

• regression equation

Multiple Choice

For this research, which statement best express the NULL hypothesis?

• There is no correlation/prediction between the hospital area and patient capacity.

• There is a correlation/prediction between the hospital area and patient capacity.

Multiple Select

The alpha of 0.05 determines your... (CHOOSE 2 answers)

• not beta

• level of significance

• regression period

• correlation co-efficient

Multiple Choice

Based on the type and number of data, what statistical data should the researchers use to analyze the regression?

• simple linear regression

• multiple linear regression

• simple logistic regression

• multiple logistic regression

Multiple Choice

Based on the type of data, what statistical data should the researchers use to analyze the correlation?

• Pearson correlation

• Spearman rank correlation

• Phi coefficient

• Point biserial

Multiple Select

After using the CORREL function in EXCEL, the researcher obtain a r=0.97. What does this correlation co-efficient mean in terms of nature and magnitude of association? (CHECK TWO answers.)

• It is positive. As X increases Y increases.

• It is negative. As X increases, Y decreases.

• There is a strong correlation.

• There is a weak correlation.

Multiple Choice

You also determine the co-efficient of determination using R SQUARED. You optain a value of 94.19%. What does this mean?

• both answer is correct (for correlation, X and Y are interchangeable)

• 94.19% variability in hospital bed can be explained by the patient capacity.

• 94.19% variability in patient capacity can be explained by the area of the hospital

Multiple Choice

Based on the p-value and with level of significance set at 0.05, what should be the decision regarding the NULL hypothesis?

• reject the NULL hypothesis and accept the ALTERNATIVE hypothesis

• do not reject the NULL hypothesis and do not accept the ALTERNATIVE hypothesis

Multiple Choice

Based on the information obtained, what would be the best statement for the conclusion?

• There is a significantly weak negative correlation between the hospital area and patient capacity, r(5) = 0.95, p<0.05.

• There is a significantly strong positive correlation between the hospital area and patient capacity, r(5) = 0.95, p<0.05.

• There is a significantly moderate positive correlation between the hospital area and patient capacity, r(5) = 0.95, p<0.05.

Multiple Choice

After using the regression analysis, you obtain these co-efficients, what would be the regression equation based on these?

• Y= 0.1486 X

• Y= 163*X

• Y=163.6*X + 0.1486

• Y=0.1486*X + 163.6

Multiple Choice

With a regression equation of Y=0.1486*X + 163.6, identify the area (square meter) if the hospital wants to accommodate 3000 patients?

• 609.4 square meters

• 164 square meteres

• 3000 square meters

• 1486 squar

​CONGRATULATIONS!

If you got 14 out of 18, you've learned enough to proceed to the laboratory exercises. ​

​If not, please review again or ask me at [e-mail].

​

​THANK YOU FOR YOUR PARTICIPATION!