pls help im very lost

Log book question 1: (Data from Agresti and Franklin 4.48) A retrospective case-control study published in 2001 found that 16 out of 118 subjects with eye cancer had used mobile phones, while 46 out of 475 control subjects had used mobile phones. The researchers had anticipated that the proportion p, of mobile phone users within cancer cases would be higher than the proportion p2 within control subjects. (a) Write down the null and alternative hypotheses. Why is a one-sided test appropriate for this example? (b) Use a calculator to find the sample proportions p, = x , and p, = x, ,, the pooled proportion p=(x, + x2 )/(n, +n, ), and the test statistic z = P1 - P2 P(1 - P) + n (c) Find the P-value, either using printed standard Normal tables or JMP. What conclusions can be made on the basis of the P-value