1. 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 whether they have an overall optimistic or an overall pessimistic attitude toward eco-friendly behaviors. Here are the results: n=10-1 Pessimistic n = 10 M=2.9 SS=40.90 Optimistic n = 10 M=6.8 SS=25.60 a. Test whether or not recycling behaviors differed between groups. Use the hypothesis testing steps & alpha- .05. b. Compute Cohen's d to measure the effect size. c. What was the power for this study?

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1. 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 whether they have an overall optimistic or an overall pessimistic attitude
toward eco-friendly behaviors. Here are the results:
n=10-1
VR
Pessimistic
n=10
M = 2.9
SS=40,90
Optimistic
n = 10
M = 6.8
SS=25.60
alpha= .05.
a. Test whether or not recycling behaviors differed between groups. Use the hypothesis testing steps &
b. Compute Cohen's d to measure the effect size.
c. What was the power for this study?
th. There is no difference in recycling behaviors between pessimistic and
optimistic indyaucus
H. There is a significant difference in recycling behaviors between pessimist
and optimistic indindudes.
DE
4=
gnificance level 0.05
Statistic +=(x-m/s/√n
Transcribed Image Text:1. 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 whether they have an overall optimistic or an overall pessimistic attitude toward eco-friendly behaviors. Here are the results: n=10-1 VR Pessimistic n=10 M = 2.9 SS=40,90 Optimistic n = 10 M = 6.8 SS=25.60 alpha= .05. a. Test whether or not recycling behaviors differed between groups. Use the hypothesis testing steps & b. Compute Cohen's d to measure the effect size. c. What was the power for this study? th. There is no difference in recycling behaviors between pessimistic and optimistic indyaucus H. There is a significant difference in recycling behaviors between pessimist and optimistic indindudes. DE 4= gnificance level 0.05 Statistic +=(x-m/s/√n
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