The results of recent polls on presidential approval ratings are shown belowApproved

Question

The results of recent polls on presidential approval ratings are shown below.

Approved of President in January			Approved of President in July
Yes	Yes	Yes	Yes	No	No
No	Yes	No	Yes	Yes	No
No	No	No	Yes	No	No
No	Yes	No	Yes	Yes	No
No	Yes	No	Yes	No	No
Yes	Yes	No	No	Yes	No
Yes	Yes	No	Yes	No	No
No	Yes	No	No	No	No
No	No	No	No	Yes	No
Yes	Yes	No	Yes	Yes	No

Does the data provide sufficient evidence to conclude that the presidential approval ratings differ between the two months? Use Excel to conduct the appropriate test at

= .05.