The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selected parts. the sample standard deviation is s=0.36.(a) test the hypothesis : =0.35 versus : 0.35 using =0.05.reject or failed to reject ? which of the following assumptions are necessary to perform this test? (i) random sample(ii) sample is drawn from a normal distribution(iii) variance is knowna) (i) and (ii)b) (i) and (iii)c) (i), (ii) and (iii)d) (i) only(b) find the p-value for this test. round the answers to 1 decimal < p-value < ) construct a 95% two-sided ci for .round the answers to 4 decimal < < ) use the ci in part (c) to test the hypothesis. failed to reject h0 ot reject h0