Recall from Problem 10.1.16 that in a particular day, 22 out of 542 visitors to a website

Question:

Recall from Problem 10.1.16 that in a particular day, 22 out of 542 visitors to a website followed a link provided by an advertiser. After the advertisements were modified, it was found that 64 out of 601 visitors to the website on a day followed the link. Is there any evidence that the modifications to the advertisements attracted more customers.