Question

Define the following concepts in your own words:

a. Statistical inference: Statistical inference is the process of drawing conclusions or making predictions about a population based on data from a sample.

b. Null hypothesis: The null hypothesis is a statement that there is no significant difference or effect in a population, and any observed differences are due to random variation.

c. Research hypothesis: The research hypothesis, often denoted as the alternative hypothesis, is a statement that contradicts the null hypothesis and suggests that there is a significant effect or difference in the population.

Answer 1

Inferential statistics is the process of drawing conclusions or making predictions about a population based on data from a sample. It involves testing hypotheses and determining the likelihood that observed results occurred by chance.

Step-by-step explanation:

Inferential statistics is the process of drawing conclusions or making predictions about a population based on data from a sample. It involves testing hypotheses and determining the likelihood that observed results occurred by chance. The null hypothesis states that there is no significant difference or effect in a population, while the research hypothesis contradicts the null hypothesis and suggests a significant effect or difference. Hypothesis testing involves setting up two contradictory hypotheses, collecting sample data, analyzing the data, and making a decision based on the results.