A researcher wants to determine if there is a relationship between media outlet (social media, newspapers, and radio) and interest in media by population group (youth, young adults, and older adults). What type of statistical test should be used?
a. Correlation Analysisb. Independent t-testc. Dependent t-testd. ANOVAe. Chi Square

The researcher should use correlation analysis for his studies.

Step-by-step explanation:

What is correlation?

Correlation is a statistical tool used to quantify the degree to which two variables are related. Through the correlation analysis, you evaluate correlation coefficient that tells you how much one variable changes when the other one does. Correlation analysis provides you with a linear relationship between two.

Types of correlation

1. Positive, Negative or Zero Correlation:

2. Linear or Curvilinear Correlation:

3. Scatter Diagram Method:

4. Pearson's Product Moment

Coefficient of Correlation:

5. Spearman's Rank Correlation

Coefficient:

The correct option is;

e. Chi-Square

Step-by-step explanation:

From the question, the researcher is trying to find out the relationship between a large population group (social media, newspapers, and radio) and another large population group, the interest in media by population group (youths and adults) of which the data that can be collected will be mutually exclusive with independent variable and raw with an aim to present the expectation side by side with the actual observed results.The most appropriate statistical test that should be used therefore is the Chi Square test.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: