The authors of the article “Exploring the Impact of Social Media Practices on Wine Sales in US Wineries” (J. Direct Data, Digital Market. Pract. 2016: 272–283) interviewed 361 winery managers. Each manager was asked to report, as a percentage of sales, the impact of social media use on their wine sales. Each winery’s social media presence was then categorized by the number of social media platforms it used: 0–2, 3–5, or 6 or more. Summary information appears in the accompanying table. Test to see whether an association exists between social media presence and sales at the .01 significance level.

Transcribed Image Text:

No. of platforms Two or fewer Three to five Six or more n 107 164 90 Mean 12.76 17.23 21.56 SD 13.00 14.07 17.35