15) Given the "t-calc" in Problem 14 and "t-table" in Problem 13, do we reject or fail to reject the null hypothesis? A) Fail to reject the null hypothesis and conclude that the new brake pad design is not slgnificantly different than the previous design. Start looking for another jobl B) Reject the null hypothesis and conclude that the new design wears significantly less than the previous design. You get a 20% merit increase! 13) What is the Critical (table) Value of " T " for a 95% confidence level from the "T" distribution? Be careful as you first must determine if this is a one or two-sided test. A) 2.447 B) 1.895 C) 1.943 D) 2.365 14) What is the calculated value of ' t ' that we shall compare to the table value in the previous question? Show all work. 15) Given the "t-calc" in Problem 14 and "t-table" in Problem 13, do we reject or fail to reject the null hypothesis? A) Fail to reject the null hypothesis and conclude that the new brake pad design is not slgnificantly different than the previous design. Start looking for another jobl B) Reject the null hypothesis and conclude that the new design wears significantly less than the previous design. You get a 20% merit increase! 13) What is the Critical (table) Value of " T " for a 95% confidence level from the "T" distribution? Be careful as you first must determine if this is a one or two-sided test. A) 2.447 B) 1.895 C) 1.943 D) 2.365 14) What is the calculated value of ' t ' that we shall compare to the table value in the previous question? Show all work