Question: Resident groups in the gentrifying Lakeview neighborhood were randomly assigned to one of three groups. Each group was sent a different mailing concerning the importance of greenery/garden plantings in controlling urban pollution. The mayor approved the mailings which were:

1. Stressed the positive benefits of greenery/garden plantings.

2. Stressed the negative impact of not having greenery/garden plantings.

3. Did not mention benefits or negatives of greenery/garden plantings, but

instead provided information on neighborhood events.

Garden experts rated persons in each group on a 10-point scale where 10 indicates the greatest variety in garden plantings and 1 indicates no variety in plantings.

No mention Negatives Positives

6 8 7

1 7 8

3 6 10

2 9 10

7 9 9

Using Excel one-way between groups ANOVA, calculate the F statistic. Use the default alpha of .05.

Is F significant?

Can you reject Ho?

Explain your findings in words addressing the implications of these findings for

future mailings, i.e., do you intend to stress the positive benefits, focus on the

negative impact or do neither in your future mailings?