need help in this

\fThe first worksheet contains data on church attendance by age group. Use this sample data to determine whether attending church is independent of age. Use the full hypothesis testing procedure and test at a 0.05 level of significance. There are several questions based on the analysis so you may wish to do the entire procedure first before answering the questions. What is the expected frequency of those in the 30 -39 age group that attend church? Enter your value to two decimal places.