Statistics Quiz

What type of data is classified as nominal?

• Rasio

• Qualitative

• Interval

• Ordinal

Which method is used for sampling when the population size is unknown?

• Simple random sampling

• Systematic sampling

• Stratified sampling

• Unknown sampling

What is the purpose of a hypothesis in statistics?

• To analyze results

• To summarize findings

• To make predictions

• To collect data

In hypothesis testing, what does H0 represent?

• Alternative hypothesis

• Null hypothesis

• Significant result

• Sample mean

What is the significance level commonly used in social research?

• 20%

• 10%

• 5%

• 1%

Which statistical test is used to determine the relationship between two variables?

• T-test

• Chi-square test

• Regression analysis

• ANOVA

What does a p-value indicate in hypothesis testing?

• The confidence interval

• The strength of the evidence against H0

• The sample size required

• The probability of a type I error

Which of the following is a method of data collection?

• Analysis

• Observation

• Sampling

• Regression

What is the purpose of a reliability test?

• To measure validity

• To analyze variance

• To ensure consistency

• To collect data

What does the term 'cross-sectional data' refer to?

• Data collected over time

• Data collected at a single point in time

• Data that is qualitative

• Data that is quantitative