A what percent of students have lasting waking-life

Question

Waking symptoms

Bedtime symptoms                       Yes                      No

Yes                                                    34                          34

No                                                     32                          19

(a) What percent of students have lasting waking-life symptoms? (Round to two decimal places.)%

(b) What percent of students have both waking-life and bedtime symptoms? (Round to two decimal places.)%

(c) Is there an association between waking-life and bedtime symptoms. State the null and alternative hypotheses. (Use α = 0.01.)