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1.         For a sample of 400 correctional officers at Lucasville State Prison, a researcher believes there is a relationship between “years on the job” and “willingness to help raise money for adult charities.” Using the following data, test the null hypothesis at the .05 level of significance that willingness to help raise donations does not differ by length of service as a correctional officer.  In so doing, identify: (1) the research and null hypothesis, (2) the critical value needed to reject the null, (3) the decision that you made upon analyzing the data, and (4) the conclusion you have drawn based on the decision you have made.

                                                                 Years as a Correctional Officer

            Willingness to Help               One                 Two                 Three               Four or More              Total

            Willing    60                     64                     60                         60                        244

            Unwilling                                60                     56                     20                         20                        156

                                                         120                  120                     80                         80                        400

Answer 1

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