QUESTION 3 Q21. Individual actions can play a large role in the overall health of our planet. A researcher interested in evaluating environmentally friendly behaviors evaluated how often people...

Step 3: Calculate the test statistic.

Characteristics of the Sampling Distribution.

Mean: μ_M1-M2 =  (whole number)

Standard error: s_M1-M2 =  (use 3 dec places)

Test Statistic.

t_obt =  (use 2 dec places)

Extracted text: QUESTION 3 Q21. Individual actions can play a large role in the overall health of our planet. A researcher interested in evaluating environmentally friendly behaviors evaluated how often people recycle (per month) based on based on whether they have an overall optimistic or an overall pessimistic attitude toward eco-friendly behaviors. The results from this hypothetical study are given in the table below. Test the hypothesis that the number of complaints changed after the new policy, using a two-tailed test, a = .05. Pessimistic Optimistic 3 4 4 6. 8. 1 9 6 3 6. 6. 5 Pessimistic: n = 10, M = 2.9, SS = 40.9, s2 = 4.54 Optimistic: n = 10, M = 6.8, S = 25.6, s2 = 2.84 LO 00 LO