11:00 Done 32 of 33 | Untitled - Paint Home View Cut Crop Copy K A NODOBA - Outline Resize Paste Select I Rotate Brushes Size Color Clipboard Image Tools Shapes 13 Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors. 2 colm I) = 4.25, $1 = 20. my =15. 12 = 4.6, $2 = .30. n2 = 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.) Book d.f. t-calculated References p-value t-critical (a-2) Based on the above data choose the correct decision. O Do not reject the null hypothesis Reject the null hypothesis (b-1) Comparison of average commute miles for randomly chosen students at two community colleges: 71 = 21. $1 = 5, nj = 22, 72 = 28, $2 =7. n2 = 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. L-calculated p-value t-critical (c-1) Comparison of credits at time of graduation for randomly chosen accounting and economics students: 21 = 147. $1 = 28. 1, =12. 12 = 143, $2 - 27. n2 = 17. a= 05, right-talled test (Negative values should be Indicated by a minus sign. Round down your d.if 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 -critical + 810, 556px 10 1914 x 901px Type here to search O W11:00 Done 32 of 33 Edit Edit with colors Paint 3D Colors 14 The XYZ Corporation is Interested in possible differences In days worked by salaried employees In three departments In the financi area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology In survey. the sample sizes are unequal, Research question. Are the mean annual attendance rates the same for employees In these three departments? Days Worked Last Year by 23 Employees Department Days Worked Budgets (5 Workers) 278 260 265 245 258 Payables (10 workers) 205 270 220 240 255 217 266 239 240 228 -Book Pricing (8 workers) 240 258 233 256 233 242 244 249 ference Click here for the Excel Data File Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 4 decimal places.) Group Std. Dev Variances Budgets Payables Pricing Total One-Factor ANDVA Source p-value Treatment Error Total Calculate the value of H(Round your answer to 2 decimal places.) Heald On the basis of the above determined . we fall to reject the null hypotheses. TRUE FALSE X