A researcher studies whether 15 minutes of meditation each day alters participants’ ability to concentrate. On a...
- A researcher studies whether 15 minutes of meditation each day alters participants’ ability to concentrate. On a psychological test of concentration, μ = 17.3 for non-meditators. On the same test, the meditators obtained the scores given below. What test statistic would you calculate to test this hypothesis? Test the hypothesis at α = .05.
15 18 22 17 18 18 19 21 19 16 22 20
- Test the hypothesis using the 5-step method. (14 points)
- Calculate the 95% confidence interval. (4 points)
- Calculate and estimate the effect size. (4 points)
- (This is psychology t-test in statistics)
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A researcher studies whether 15 minutes of meditation each day
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