I am having problems solving b & c. Plaease assist

Confidence Level Confidence Level .80 .90 .95 .98 .99 .80 .90 .95 .98 .99 Significance Level for Two-Tailed Test Significance Level for Two-Tailed Test .20 .10 .05 .02 .01 20 10 .05 .02 .01 Significance Level for One-Tailed Test Significance Level for One-Tailed Test d.f. .10 .05 .025 .01 .005 d.f. .10 .05 .025 .01 .005 1 3.078 6.314 12.706 31.821 63.657 36 1.306 1.688 2.028 2.434 2.719 2 1.886 2.920 4.303 6.965 9.925 37 1.305 1.687 2.026 2.431 2.715 3 1.638 2.353 3.182 4.541 5.841 38 1.304 1.686 2.024 2.429 2.712 4 1.533 2.132 2.776 3.747 4.604 39 1.304 1.685 2.023 2.426 2.708 5 1.476 2.015 2.571 3.365 4.032 40 1.303 1.684 2.021 2.423 2.704 6 1.440 1.943 2.447 3.143 3.707 41 1.303 1.683 2.020 2.421 2.701 7 1.415 1.895 2.365 2.998 3.499 42 1.302 1.682 2.018 2.418 2.698 8 1.397 1.860 2.306 2.896 3.355 43 1.302 1.681 2.017 2.416 2.695 9 1.383 1.833 2.262 2.821 3.250 44 1.301 1.680 2.015 2.414 2.692 10 1.372 1.812 2.228 2.764 3.169 45 1.301 1.679 2.014 2.412 2.690Truck 1 Truck 2 Truck 3 Truck 4 Truck 5 Truck 6 Truck 7 Truck 8 Entry failures 45 41 53 59 63 51 50 41 Exit failures 46 55 55 60 69 46 56 49 Epicture Click here for the Excel Data File (a) Choose the appropriate hypotheses. Define the difference as Entry - Exit. H0: pd = 0 versus H1: pd #6 O O HO: pd 2 0 versus H1: pd O (b) Find the test statistic tcalc- (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.) tcalc :I (c) Find the critical value tcr'it for a = 0.05. (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.) llcri'c :l (d) Find the pvalue. (Round your answer to 4 decimal places.) p-value |:|