Use a ? 2 test to test the claim that in the given contingency table, the row variable and the column variable are independent
-A company manager wishes to test a union leader's claim that absences occur on the different week days with the same frequencies. Test this claim at the 0.05 level of significance if the following sample data have been compiled. $$\begin{array} { c | r r r r r }
\text { Day } & \text { Mon } & \text { Tue } & \text { Wed } & \text { Thur } & \text { Fri } \
\hline \text { Absences } & 37 & 15 & 12 & 23 & 43
\end{array}$$

Question

Use a ? 2 test to test the claim that in the given contingency table, the row variable and the column variable are independent
-A company manager wishes to test a union leader's claim that absences occur on the different week days with the same frequencies. Test this claim at the 0.05 level of significance if the following sample data have been compiled. $$\begin{array} { c | r r r r r } 
\text { Day } & \text { Mon } & \text { Tue } & \text { Wed } & \text { Thur } & \text { Fri } \
\hline \text { Absences } & 37 & 15 & 12 & 23 & 43
\end{array}$$

Quizplus · Accepted Answer

The Answer is

\mathrm { H } _ { 0 }

: The proportions of absences are all the same.

\mathrm { H } _ { 1 }

: The proportions of absences are not all the same.
Test statistic:

\chi ^ { 2 } = 28.308

. Critical value:

\chi ^ { 2 } = 9.488

. Reject the null hypothesis. There is sufficient evidenci to warrant rejection of the claim that absences occur on the different week days with the same frequency.

Use a ?2 Test to Test the Claim That in the Given

Use a ?² Test to Test the Claim That in the Given