During a recent health fair a group of participants responded to two questions: 1) Asthma attack (Yes/No) and 2) Social economic status (High, Middle, Low). The survey results are shown in the following.
|
Asthma Attack
|
|
Social Econ Status
|
Yes
|
No
|
|
High
|
9
|
91
|
|
Middle
|
10
|
90
|
|
Low
|
11
|
89
|
(a) Write the statistical hypotheses to be tested.
(b) There are 3 types of percentages namely, (1) Cell, (2) Column, and (3) Row.
Based on the above table layout, which of the 3 percentages is most useful? Why?
(No need to calculate that percentage.)