For the given data using Anova single factor in Excel we get output as
Anova: Single Factor | ||||||
SUMMARY | ||||||
Groups | Count | Sum | Average | Variance | ||
sample 1 | 3 | 18 | 6 | 7 | ||
sample 2 | 3 | 12 | 4 | 7 | ||
sample 3 | 4 | 20 | 5 | 36.66667 | ||
ANOVA | ||||||
Source of Variation | SS | df | MS | F | P-value | F crit |
Between Groups | 6 | 2 | 3 | 0.152174 | 0.861605 | 4.737414 |
Within Groups | 138 | 7 | 19.71429 | |||
Total | 144 | 9 |
So from the above output
( c ) at alpha = 0.05 l.o.s f critical value = 4.737
Decision :
F CAL < F CRITICAL
i.e ., 0.152 < 4.737
so fail to reject H0
the population means are equal ( same )
Consider the data in the table collected from three independent populations. Sample 1 Sample 2 Sample...
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Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the table. b) How many population means are being tested? c) Using a = 0.05, what conclusions can be made concerning the population means? Sum of Squares Degrees of Freedom Mean Sum of Squares w Source Between Within Total Click the icon to view a table of critical F-scores for a = 0.05. a) Complete the ANOVA table below. Sum of Degrees of Mean Sum...