Find the test statistic. (Round your answer to two decimal places.) F =
MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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he accompanying data on calcium content of wheat are consistent with summary quantities that appeared in a research article on how mineral contents of cereal grains were affected by storage and insect infestation. Four different storage times were considered.
Storage Time | Observations | |||||
---|---|---|---|---|---|---|
0 months | 58.75 | 57.94 | 58.91 | 56.85 | 55.21 | 57.30 |
1 month | 58.86 | 56.42 | 56.51 | 57.67 | 59.75 | 58.48 |
2 months | 59.12 | 60.39 | 58.01 | 59.95 | 59.51 | 60.34 |
4 months | 62.33 | 58.76 | 60.02 | 59.36 | 59.61 | 61.95 |
Do these data provide evidence that the means for calcium content are not all the same for the four storage periods? Use the three-read strategy to understand the problem, and then test the relevant hypotheses using a significance level of 0.01. (Let ?1, ?2, ?3, and ?4 be the true mean calcium content for 0 months storage, 1 month storage, 2 months storage, and 4 months storage, respectively.)
Find the test statistic. (Round your answer to two decimal places.)
F =
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