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Need help in TUKEY HSD, unserue on how it\'s done. Please see below I\'m basing

ID: 3075401 • Letter: N

Question

Need help in TUKEY HSD, unserue on how it's done. Please see below I'm basing that I do need to conduct a TUKEY since the P-Value is below 0.5

Age Happiness Engagement Mean 32.02 Mean 7.4 Mean 7.64 Standard Error 0.61378052 Standard Error 0.2 Standard Error 0.175569046 Median 31.5 Median 8 Median 8 Mode 29 Mode 8 Mode 8 Standard Deviation 4.3400837 Standard Deviation 1.414213562 Standard Deviation 1.241460628 Sample Variance 18.8363265 Sample Variance 2 Sample Variance 1.54122449 Kurtosis -1.08642015 Kurtosis -0.24983717 Kurtosis 0.859898343 Skewness 0.18868966 Skewness -0.71251831 Skewness -0.93445577 Range 15 Range 5 Range 6 Minimum 25 Minimum 4 Minimum 4 Maximum 40 Maximum 9 Maximum 10 Sum 1601 Sum 370 Sum 382 Count 50 Count 50 Count 50 Anova: Single Factor SUMMARY Groups Count Sum Average Variance Age 50 1601 32.02 18.83632653 Happiness 50 370 7.4 2 Engagement 50 382 7.64 1.54122449 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 20009.7733 2 10004.88667 1341.284396 3.94807E-95 3.057620652 Within Groups 1096.5 147 7.459183673 Total 21106.2733 149

Explanation / Answer

Here as the p - value is less than 0.05 so here

Tukey's HSD = (Mi -Mj )/sqrt[ MSw /nh ]

Where:

Here for 1 and 2

HSD = (32.02 - 7.4)/sqrt [7.4592/50]

= 24.62/0.3862 = 63.75

for 1 and 3

HSD = (32.02- 7.64)/ sqrt [7.4592/50]

= 24.38/0.3862 = 63.12

for 2 and 3

HSD = (7.64 - 7.40)/ sqrt [7.4592/50]

= 0.24/0.3862 = 0.6214

so now we will find critical value for alpha = 0.05, dF = 147 and k = 3

Q (Critical)= 3.31

so here we say that mean 1 is different from mean 2 and mean 3 but mean 2 and mean 3 are not statistically different.

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