Answer :
The hypothesis should be accepted. The reason is given below.
How to solve for the degree of freedom
we have n = 4
4 - 1 = 3
At a df of 3, the Chi2 of 7.8 would lie between p value of 5 percent and 1 percent. Now if p value is higher than 5 percent we have to accept H0.
What is Chi square
This is the goodness of fit test that is useful for the determination of the observed and the expected differences in the data. P value higher than 5 percent would get us to accept the null.
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