Use Exce) An analysis of variance experiment produced a portion of the accompany

Question

Use Exce) An analysis of variance experiment produced a portion of the accompanying ANOVA table. Us able 4. Click here for the Excel Data File a. Fil in the missing statistics in the ANOvA table. Round your answers to 2 decimal places.) ANOVA Source of Variation SS df MS F p-value F crit Between Groups 25.08 3 0.0004 2.725 Within Groups 92.64 76 Total 117.72 79 b. specify the competing hypotheses in order to determine whether some differences exist between the population means. O Ho: UA ue uc HD: HA: Not all population means are equal O Hoa HA 2 HB 2 uc 2 HD: HA: Not all population means are equal O Ho: uA s UB s uc s HD; HA: Not all population means are equal c. At the 5% significance level, what is the conclusion to the test? Reject Ho; we can conclude that some means differ. Reject Ho: we cannot conclude that some means differ. Do not reject Ho; we can conclude that some means differ. Do not reject Ho; we cannot conclude that some means differ.

Explanation / Answer

b_) option A

Null hypotheis : All are equal

Alternate hypotheis : All are not equal

c-) If p value is less than 0.05 we reject null hypothsis

Reject H0 : some means may differ

source of variation SS df MS= SS/df F=Msbig/Mssmall p-value F cric Between grps 25.08 3 8.36 6.858376511 0.0004 2.725 within grps 92.64 76 1.218947368 Total 117.72 79

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