The Chi-squared Test
IMPORTANT
The Chi-squared Test: Overview
This topic covers concepts, such as, Chi-squared Test etc.
Important Questions on The Chi-squared Test
MEDIUM
IMPORTANT
The disparity between observed and expected data is due to chance or due to a relationship between the variables can be identified by the Chi-Square test.

HARD
IMPORTANT
A company is preparing invoices to send to their customers. Before they are sent, they are checked and the daily number of mistakes found over a two-week period are recorded.
Week 1 | Week 2 | |||||||||
M | Tu | W | Th | F | M | Tu | W | TH | F | |
Errors |

