# Question

In 2009, a study showed that the percentage of online Canadians with a social network profile had increased to 56%, up from 39% in a study done 18 months previously. In 2009, 824 online Canadians were surveyed (462 indicated they had a social network profile). In the previous study, 800 online Canadians were surveyed. Based on the survey results, can we conclude that the percentage of online Canadians with social network profiles has increased by more than 10% in the 18-month period before the study? Use a 5% level of significance.

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