The following data was reported on total Fe for four types of iron formation (1

Question

The following data was reported on total Fe for four types of iron formation (1 = carbonate, 2 = silicate, 3 = magnetite, 4 = hematite). 1: 20.1 28.1 27.8 27.0 27.7 25.2 25.3 27.1 20.5 31.7 2: 26.1 24.0 26.2 20.2 23.9 34.0 17.1 26.8 23.7 25.4 3: 30.4 34.0 27.5 29.4 28.1 26.2 29.9 29.5 30.0 35.8 4: 36.9 44.2 34.1 30.3 31.6 33.1 34.1 32.9 36.3 25.6 Carry out an analysis of variance F test at significance level.01, and summarize the results in an ANOVA table. (Give answers accurate to 1 decimal place.) Source Treatments Error Total Conclusion Df MS Reject Ho and conclude at least 2 means differ. Fail to reject Ho and conclude no means differ. O Reject Ho and conclude no means differ O Fail to reject Ho and conclude at least 2 means differ. You may need to use the appropriate table in the Appendix of Tables to answer this question.

Explanation / Answer

From the statistical software output, the required ANOVA table wil be:

ANOVA table

Source DF SS MS F Treatment 3 517.5 172.5 10.9 Error 36 571.5 15.9 Total 39 1089.0

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