The table below lists adult weights of individuals who are on three separate tre

Question

The table below lists adult weights of individuals who are on three separate treatment programs (Treatment A, B, and C) to help reduce weight. The weights of individuals in each treatment program are listed on the top most table. For your convenience, the number of observations (n) mean, and standard deviation of each treatment program is listed in the bottom most table. Knowledge of calculating n, mean and standard deviation is expected and thus is provided (these may or may not be provided on exams). What is the p-value? p-value

Explanation / Answer

Using Minitab:

One-way ANOVA: Treatment A, Treatment B, Treatment C

Method

Null hypothesis         All means are equal
Alternative hypothesis At least one mean is different
Significance level      = 0.05

Equal variances were assumed for the analysis.

Factor Information

Factor Levels Values
Factor       3 Treatment A, Treatment B, Treatment C

Analysis of Variance

Source DF Adj SS Adj MS F-Value P-Value
Factor   2    1876 937.87    16.56    0.000
Error   18    1019   56.62
Total   20    2895

Here P-value <0.001 is the correct option.

Hope this will helps you:-)

Thanks and God Bless You:-)

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