ECTION III: A researcher tested whether drinking caffeine had an effect on anxie
ID: 3050668 • Letter: E
Question
ECTION III: A researcher tested whether drinking caffeine had an effect on anxiety. Below is an SPSS printout from an "independent measures t-test for the data he collected Group Statistics Std. Error VAR00002 MeanSid. Deviation Mean 4.8333 6 8.3333 1.1690547726 2.00 Independent Samples Test Levene's Test for ttest for Equality of Means 95% Confidence Interval of the Mean Sad. EmorDifference d (2-taled) ference oference Lower Upper .0001-350000| .58214| 479709 | -220291 537 4816.012 10 Equal variances 6.012940 000 3.50000 214 81824 218176 19. Please write the "statistical statement" for the above SPSS results: Answer: 20. What decision did you make at end of this test? 21. Are the data significant? Yesor No 22. Please write up the complete results for the above test:Explanation / Answer
19:
F test shows the p-value is greater than 0.05 so we can assume that variances are equal.
So t-test (equal variances) will be used.
The statistical statement is
t(10)= -6.012, p < 0.002
20)
Since p-value is very so we can conclude that difference is statisticallly signficant.
21)
Yes
22)
On the basis of sampel evidence we can cocnlude that drinking caffeine had an effect on anxiety.
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