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QUESTION 21 If four samples (groups) each consisting of 10 observations are being compared with SST reatments 25.5 and SS Total- 204.6.Refer to question 21 (above), conduct a h the population means are equal across the 4 groups. Which one of the following statements is incorrect? ypothesis test at 5% level of significance to test whether 1. HO : μ--142-: μ 3 Ma vs Hl : at least 2 means differ 2. The rejection region is F <4.76 3. It can be concluded, with 95% confidence that the mean across the 4 groups are the same. 4. There is no statistical relationship between the groups 5. All the above statements are correct. 24

math   Statistics-And-Probability   
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