It is a statistical technique used to determine the degree to which two variables are related

It is a rectangular coordinate where two quantitative variables are compared to determine if there is a relationship with each other.

It is a rectangular coordinate where two quantitative variables are compared to determine if there is a relationship with each other.

It is a rectangular coordinate where two quantitative variables are compared to determine if there is a relationship with each other.

Which of the following is NOT a given relationship when two variables are compared?

What kind of relationship does this scatter diagram indicate?

What kind of relationship does this scatter diagram indicate?

What kind of relationship does this scatter diagram indicate?

It is defined as the numerical description or measure of the linear relationship between two variables.

It is called Pearson's correlation or product-moment correlation coefficient.

It measures the nature and strength between two variables of the quantitative type

FILL IN THE BLANKS RESPECTIVELY:

The ____ of "r" represents the nature of association, while the ___ of "r" represents the strength of association.

• Mr. Jack runs an ice cream business. He observed that when the temperature goes up, ice cream sales also go increase. Predict the relationship.

• Ms. Flora runs a local garden in Silang, Cavite. She observed that the more it rains, the less she can water the garden. Predict the relationship.

A researcher has gathered the following data to see if there is a relationship between stress and life satisfaction.

Find the correlation coefficient and predict its relationship.

$$r=\frac{n\ \Sigma\ xy-\Sigma\ x\ \Sigma\ y}{\sqrt[]{\left(n\ \Sigma\ x^2-\left(\Sigma\ x\right)^2\right)-\left(n\ \Sigma\ y^2-\left(\Sigma\ y\right)^2\right)}}$$

It is the nonparametric version of the Pearson product-moment correlation.

It measures the strength and direction of association between two ranked variables.

Use the Spearman Rank-Order Correlation to determine whether if there is a relationship between these two variables and find the correlation coefficient. (Click the image to view)

The critical value is 0.538.

$$p=1-\frac{6\ \Sigma\ d^2}{n\ \left(n^2-1\right)}$$

TRUE OR FALSE

Kendall’s Tau is a non-parametric measure of relationships between columns of non-ranked data.

It is a non-parametric analogue to the Pearson Product Moment Correlation

It is defined as the number of observed ranks below a particular rank which are larger than a particular rank.

It is defined as the number of observed ranks below a particular rank which are smaller in value than that particular rank

A researcher has gathered the following data to determine whether or not there is a relationship between the two variables. Find also the test statistic. $$Kendall's\ Tau=\frac{C-D}{C+D}$$

It is used for contingency tables when at least one variable is a nominal variable.

It is defined as categorical variables with two categories.

It is a measure of association between two binary variables.

It is also called the Yule phi or Mean Square Contingency Coefficient and is used for contingency tables

It is defined as a special type of frequency distribution table which are used in statistics to summarize the relationship between several categorical variables.

It is a statistical test that compares the averages or means and standard deviations of two related groups to determine if there is a significant difference between the two groups.

Also known as a dependent t-test

Which of the following is NOT an assumption of a paired t-test?

A study where it observes the sleep quality of Biochemistry students before and after a certain sleeping therapy program is an example of what kind of t-test?

A gym instructor wants to find out if his training program is statistically significant. In the table are the measured scores of the students before and after the program. Find also the test statistic.

The critical value is 2.262.

$$t=\frac{mean\ of\ D\ \times\sqrt[]{n}}{\sqrt[]{\frac{n\ \Sigma\ D^2-\left(\Sigma\ D\right)^2}{n\left(n-1\right)}}}$$

It is a statistical procedure that compares the averages/means of two independent or unrelated groups to determine if there is a significant difference between the two.

Which of the following is NOT an assumption of an unpaired t-test?

What does this formula solve?

It is used for comparing means between more than 2 groups.

In ANOVA, which is the independent variable?

In ANOVA, which is the dependent variable?

Which of the following is NOT an assumption of ANOVA?

Its distribution arises in tests of hypotheses concerning the independence of two random variables and concerning whether a discrete random variable follows a specified distribution.

It is a nonparametric test where it is used to identify difference between two independent samples of rank-ordered data

The Wilcoxon Signed-Rank test is named after who?

It is designed to test a hypothesis about the location (median) of a population distribution. It often involves the use of matched pairs, for example, before and after data, in which case it test for a median difference of zero

To which test do these formulas belong?

To which test do these formulas belong?