Question: According to Facebook s self - reported statistics, the average Facebook user is connected to 8 0 community pages, groups, and events. For a

According to Facebook $’$ s self $-$ reported statistics, the average Facebook user is connected to $80$ community pages, groups, and events. For a statistics project a student at San Jose State University tests the hypothesis that SJSU students will average less than $80$ such connections.

She posts a survey on her Facebook page. Her sample contains $45$ responses.

She chooses a $5 %$ level of significance. From her data she calculates a t $-$ test statistic of approximately $- 2.14$ with a P $-$ value of about $0.019 .$

What can she conclude?

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