Inferential Stats

A measure of central tendency

• Range

• Mode

• Standard deviation

• Mean

A measure of dispersion

• Mode

• Mean

• Range

• Median

The most commonly occurring number

• Mean

• Range

• Mode

• Standard Deviation

When looking at statistical significance, social workers and socail scientists have settled on ________ to be the most common cutoff point to separate findings.

• 5

• .05

• .5

How do descriptive and inferential statistics differ?

• Descriptive statistics are more computationally sophisticated than inferential statistics.

• Inferential statistics are more computationally sophisticated than descriptive statistics

• Descriptive statistics only attempt to describe data, while inferential statistics attempt to make predictions based on data.

• Inferential statistics only attempt to describe data, while descriptive statistics attempt to make predictions based on data.

What are two examples of inferential statistics?

• Range and percentiles.

• Mean and probability distributions.

• Regression analysis and hypothesis testing.

• Variance and correlation.

Tell if the statement if Descriptive or Inferential

A recent survey of 2000 adults having an MBA reported that the average salary is more than $65,000 a year.

• Inferential

• Descriptive

Tell if the statement if Descriptive or Inferential

The chances of you getting a new car is about the same as passing your statistics class.

• Descriptive

• Inferential

Between a Population and Sample: which size is bigger ?

• Population

• Sample

• Both can be the same

• Not enough information

These are the two types of statistics:

• Discrete and Continuous

• Population and Sample

• Descriptive and Inferential

• Mean and Standard deviation