help with these questions, please

15. The manufacturer of an insecticide, Fly-die, claims that one application of the spray will kill more than 90% of the flies sprayed. As purchasing agent for a departmental store, you wish to test the claim at a = 0.05 level. If 830 out of 900 flies sprayed were killed, then what is the value of the test statistics? (a 2.571 (b) 2.002 (c) 2.222 (d) 1.967 (e) none of the above.16. In reference to question number 15, what is the Pvalue and the critical value of the test? (a) (0.987,-1.645) (b) (0987,1045) (c) (0013,4045) (d) (0.013,1.645) (e) none of the above