Construct the oneway ANOVA table The table below shows the r

Construct the one-way ANOVA table.

The table below shows the results of hardness measurements of three welds using three fluxes, an engineer needs to find if there are differences in the population mean hardness among the three flux types. Which of the following one-way ANOVA table is absolutely correct and why?

Table: Hardness of welds using different flux

Construct the one-way ANOVA table.

The table below shows the results of hardness measurements of three welds using three fluxes, an engineer needs to find if there are differences in the population mean hardness among the three flux types. Which of the following one-way ANOVA table is absolutely correct and why?

Table: Hardness of welds using different flux

Flux A Flux B Flux C
250 254 258
260 265 264
239 263 253

Solution

The table value of F at 0.05 with (2,6) is 5.14. Fcal<Ftab, so we accept null hypothesis. Therefore, there is no differences in the population mean hardness among the three flux types.

Source of variation ss df mss F
Among groups 201.5556 2 100.7778 1.7276
Within groups 349.9999 6 58.3333
Total 551.5555 8
Construct the one-way ANOVA table. The table below shows the results of hardness measurements of three welds using three fluxes, an engineer needs to find if th

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