Chi-Square Data Analysis

PSY325 Week 2 Scenario and Data Set 4

Source: Adapted from Tanner (2016, p. 320)

A car salesperson attempts to determine whether age and the type of car purchased are

related. Observed data for 100 car buyers are shown below.

Sports Economy Sedan Total

20s 6 16 10 32

30s 12 14 12 38

40s 6 10 14 30

Total 24 40 36 100

Calculate the chi-square, determine statistical significance, and answer the questions in the

assignment instructions.