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Consider the sample data for plants A, B, C D of the company below, which are tabulated in table 1. Test whether the four means are equal at the 5%...
Consider the sample data for plants A, B, C & D of the company below, which are
tabulated in table 1. Test whether the four means are equal at the 5% level of significance. Perform a test that will compare all 4 means at once. We are not interested in pair-wise comparisons at this stage. Please show all the steps in your calculations.
Table 1:
A B C D
333 328 320 333
332 329 321 321
320 323 322 329
326 327 325 330
328 330 326 328
325 331 328 325
323 332 329 333
321 320 330 331
334 324 331 327
322 323 332
320 334
329
330
328
331
330
A B333332320326328325323321334322320329330328331330 C328329323327330331332320324323334 D320321322325326328329330331332 333321329330328325333331327...