The accompanying data are the times (in seconds) that it took a sample of employees to assemble

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The accompanying data are the times (in seconds) that it took a sample of employees to assemble a toy truck at a Cole Industries assembly plant. Assembly times are normally distributed. At the 10% level, can we conclude that the mean assembly time for this toy truck is not equal to 3 minutes? Use Ha: µ ≠180 seconds as the alternative hypothesis Data : 190 180 181 208 198 199 176 174 183 188 165 198


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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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