Question

The influence of vitamin C on the number of occuring colds should be tested. For this purpose, 300 test subjects are randomly divided into two groups, one of which is each a certain dose of vitamin C and the other receives a placebo. The result is the following data:

Number of Occured Colds	lesser	higher	unchanged
ControlGroup	56	61	24
TestGroup	81	55	23

Test with a Chi-Square Independence test at (significance)level α = 0.01 the null hypothesis,
that vitamin intake and Occured Colds do not depend on each other.

Please write your steps for a good understanding. Really appreciate your help!

Answer 1

Answer:-

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