People gain weight when they take in more energy from food than they expend. James Levine and his collaborators at the Mayo Clinic investigated the link between obesity and energy spent on daily activity.

They chose20healthy volunteers who didn't exercise. They deliberately chose10who are lean and10who are mildly obese but still healthy. Then they attached sensors that monitored the subjects' every move for10days. The table presents data on the time (in minutes per day) that the subjects spent standing or walking, sitting, and lying down.

Find the standard error. Give your answer to four decimal places.

SE=

Find the test statistic?.Give your answer to four decimal places.

t=

A B C D E 1 Group Subject Stand Sit Lie 2 1 1 511.1 370.3 555.5 3 1 2 607.925 374.512 450.65 4 1 3 319.212 582.138 537.362 5 1 4 584.644 357.144 489.269 6 1 5 578.869 348.994 514.081 7 1 6 543.388 385.312 506.5 8 1 7 677.188 268.188 467.7 9 1 8 555.656 322.219 567.006 10 1 9 374.831 537.031 531.431 11 1 10 504.7 528.838 396.962 12 2 11 260.244 646.281 521.044 13 2 12 464.756 456.644 514.931 14 2 13 367.138 578.662 563.3 15 2 14 413.667 463.333 532.208 16 2 15 347.375 567.556 504.931 17 2 16 416.531 567.556 448.856 18 2 17 358.65 621.262 460.55 19 2 18 267.344 646.181 509.981 20 2 19 410.631 572.769 448.706 21 2 20 426.356 591.369 412.919A B 1 NoPain Pain 2 3.43 4.71 3 4.86 4.86 4 1.71 4.14 1.71 1.29 6 3.86 2.29 3.14 4.43 8 4.14 3.57 9 3.14 4.43 10 4.43 3.57 11 3.71 3.43 12 3.00 4.14 13 3.14 3.86 14 4.14 4.57 15 4.29 4.57 16 2.43 4.29 17 2.71 1.43 18 4.43 4.29 19 3.43 3.57 20 1.29 3.57 21 1.29 3.43 22 3.00 2.29 23 3.00 4.00 24 2.86 4.43 25 2.14 4.71 26 4.71 4.71 27 1.00 2.14 28 3.71 3.57