Do a two -sample test for equality of means assuming unequal variances . Calculate the p- value using Excel ( 2 - 1 ) Comparison of GPA for randomly chosen college juniors and seniors 2 1 = 4.05 , 51 = 20 , 1 = 15 , 2 2 = 4 . 35 , 52 = 130 , 172 = 15 , a = 025 , left- tailed test ( Negative values should be indicated by a minus sign . Round down your dif answer to the nearest whole number and other answers to 4 decimal places . Do not use " quick " rules for degrees of freedom . ) - calculated value Ecritical ( 2 - 2 ) Based on the above data choose the correct decisio Reject the null hypothesis Do not reject the null hypothesis ( 6 - 1 ) Comparison of average commute miles for randomly chosen students at two community college 20 1 = 19 , 5 1 = 5 , 1 1 = 22 , 20 2 = 25 , 52 = 7 , 12 = 19 , a = 05 , two - tailed test edative ( Negative values should be indicated by a minus sign . Round down your d.f . answer to the nearest whole number and othe answers to 4 decimal places . Do not use " quick " rules for degrees of freedom . ) E calculated value Ecritical(b-2) Based on the above data choose the correct decision. 0 Reject the null hypothesis 0 Do not reject the null hypothesis (c-1) Comparison of credits at time of graduation for randomly chosen accounting and economics students: i1 = 144, 51: 2.8, in =12, :62 = 143, 52 = 2.7, n2 =17, a: .05, right-tailed test. (Negative values should be indicated by a minus sign. Round down your ctr: answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick" rules for degrees of freedom.) 0'. f. tcalculated rvalue tcritical (c-2) Based on the above data choose the correct decision. 0 Reject the null hypothesis 0 Do not reject the null hypothesis