Group 1 ->18-42 YearsGroup 2 -> 43-67 YearsGroup 3 -> 68-89 Years How would you interpret these results for Groups 2 and 3?A post hoc test was not requiredMiddle-age subjects and older subjects differed significantly in their ability to perform the Stroop taskMiddle-age subjects and older subjects performed equally well on the Stroop taskMiddle-age subjects performed better on the Stroop task than older subjects did Multiple ComparisonsDependent Variable: Stroop TestTukey HSDMeanDifference (I-J)95% Confidence Interval(1) Age in Years () Age in YearsStd. ErrorSig.Lower Bound Upper Bound18-4243-67-3.5024.76432<.001-5.2993-1.705568-89-8.9610*.72964<.001-10.6764-7.24563.5024-5.458643-6718-42.76432<.0011.70555.299368-89.83317<.001-7.4174-3.499868-8918-428.9610*.72964<.0017.245610.676443-675.4586*.83317<.0013.49987.4174Based on observed means.The error term is Mean Square(Error)46.251.*. The mean difference is significant at the .05 level.

Null hypothesis: There is no difference between group 2 and group 3 in the ability to perform the…

Answered: How would you interpret these results…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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Group Number of Children Mean PEF Std Dev PEF Chronic Bronchitis 25 281 68 No Chronic Bronchitis 25 319 74 Using the data presented above: a) Construct a 95% confidence interval for the mean PEF in children without chronic bronchitis b) Determine how many children would be required to ensure that the margin of error in (a) does not exceed 10 units.
Males vs Females and One True Love In Data 2.1 we describe a study in which a random sample of 2625 US adults were asked whether they agree or disagree that there is “only one true love for each person.” The response and gender of the participants is shown in Table 3.6. Use the information in the table to construct and interpret a 95% confidence interval for the difference in the proportion who agree, between males and females, using the fact that the standard error for the difference is 0.018. Is it plausible that there is no difference between males and females in the proportion who agree that each person has only one true love? Table3.6Is there one true love for each person? Male Female Total Agree. 372. 363. 735 Disagree. 807. 1005. 1812 Don't know. 34. 44. 78 Total 1213 1412 2625
Caffeine in Soft Drinks Listed below are measured amounts of caffeine (mg per 12 oz of drink) obtained in one can from each of 20 brands (7UP, A&W Root Beer, Cherry Coke, …, TaB). Use a confidence level of 99%. Does the confidence interval give us good information about the population of all cans of the same 20 brands that are consumed? Does the sample appear to be from a normally distributed population? If not, how are the results affected?
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How would you interpret these results for Groups 2 and 3? A post hoc test was not required Middle-age subjects and older subjects differed significantly in their ability to perform the Stroop task Middle-age subjects and older subjects performed equally well on the Stroop task