Is there evidence for a difference in the population means of the four groups? Justify your answer

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Is there evidence for a difference in the population means of the four groups? Justify your answer using specific value(s) from the output.

Refer to the data with analysis shown in the following computer output:

Level N Mean StDev A 86.833 5.231 76.167 6.555 80.000 9.230 D 69.333 6.154 Source DF Groups SS MS 3 962.8 320.9 6.64 0.0

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Statistics Unlocking The Power Of Data

ISBN: 9780470601877

1st Edition

Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock

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Question Posted: Dec 06, 2018 05:24 AM

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Is there evidence for a difference in the population means of the four groups? Justify your answer

Question:

Level N Mean StDev A 86.833 5.231 76.167 6.555 80.000 9.230 D 69.333 6.154 Source DF Groups SS MS 3 962.8 320.9 6.64 0.003 Error 20 967.0 48.3 Total 23 1929.8

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Yes the pvalue 0003 is very s...View the full answer

Statistics Unlocking The Power Of Data

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