Question

ANOVA

Chest Deceleration in a Car Crash
Use the chest deceleration data (g) below to test the null hypothesis that the different weight categories have the same mean. Use a 0.05 significance level. (Practice this using the five steps in hypothesis testing).  

I want to know how to get the Pvalue.

Subcompact car	Compact car	Midsize car	Full-size car
55	57	45	44
47	57	53	45
59	46	49	39
49	54	51	58
42	51	46	44

Answer 1

Using Excel

data -> data analysis -> Anova: Single Factor

F = 1.3432

df1 = 3 , df2 = 16

p-value = P(F > 1.3432)

= 0.2956 {see p-value column, can also approximate usingF-table or use R/SPSS /Minitab etc}

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