Respondents - chi-square

Asked respondents answered a question about their average net monthly wage. The given answers are in thousands €: 0.40; 0.60; 0.55; 0.68; 0.63; 0.70; 0.65; 0.75; 0.91; 0.63; 0.38; 0.39; 0.38; 0.74; 1.25; 1.10; 1.30; 1.15; 1.18; 1.13; 1.15; 1.19; 1.21. Using the χ² goodness-of-fit test, find out whether the random variable ξ corresponding to this set has a normal distribution or not.

Consider 5 equally long intervals. Determine the value of the test statistic and the critical region.

Final Answer:

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