(b-1) Comparison of average commute miles for randomly chosen students at two community colleges: ₁23, ₁5, M₁ = 22, ₂=32₁ S₂ = 7₁ m₂ = 19, a = .05, two-talled test. = (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick" rules for degrees of freedom.) d.f. t-calculated p-value t-critical (b-2) Based on the above data choose the correct decision. Do not reject the null hypothesis O Reject the null hypothesis (c-1) Comparison of credits at time of graduation for randomly chosen accounting and economics students: ₁ = 149, S₁ = 2.8, n₁ = 12, ₂=146, S₂ = 2.7, n₂ = 17, a = .05, right-talled test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick" rules for degrees of freedom.) d.f. t-calculated p-value t-critical (c-2) Based on the above data choose the correct decision. O Do not reject the null hypothesis O Reject the null hypothesis