Statistics Basics Quiz for Social Science

What is the mean of the following data set: 4, 8, 6, 5, 3?

• 4.5

• 5.2

• 5.0

• 5.5

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DOK Level 1: Recall

Which measure of central tendency is most affected by extreme values (outliers)?

• Mean

• Median

• Mode

• Range

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DOK Level 1: Recall

Calculate the range of the following data set: 15, 22, 8, 19, 31.

• 13

• 23

• 16

• 26

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DOK Level 1: Recall

Which of the following sampling methods ensures that every member of the population has an equal chance of being selected?

• Stratified Sampling

• Systematic Sampling

• Simple Random Sampling

• Cluster Sampling

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DOK Level 1: Recall

A researcher wants to understand the average income of households in a city. She divides the city into different regions and randomly selects households from each region. What type of sampling method is she using?

• Simple Random Sampling

• Stratified Sampling

• Systematic Sampling

• Cluster Sampling

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DOK Level 2: Skill/Concept

If the standard deviation of a data set is 5, what is the variance?

• 10

• 15

• 25

• 30

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DOK Level 1: Recall

• The hypothesis that there is a significant effect or difference

• The hypothesis that there is no significant effect or difference

• The hypothesis that the sample mean is greater than the population mean

• The hypothesis that the sample mean is less than the population mean

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DOK Level 1: Recall

A social scientist wants to test if a new teaching method is more effective than the traditional method. She sets up an experiment with two groups: one using the new method and one using the traditional method. What type of hypothesis test should she use?

• One-sample t-test

• Two-sample t-test

• Chi-square test

• ANOVA

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DOK Level 2: Skill/Concept

Which measure of variability is defined as the average of the squared differences from the mean?

• Range

• Variance

• Standard Deviation

• Interquartile Range

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DOK Level 1: Recall

A data set has a mean of 50 and a standard deviation of 5. What is the z-score of a value of 60?

• 1

• 2

• -1

• -2

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DOK Level 2: Skill/Concept