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(1 point) It is considered quite common to have feet of unequal length. In a sample of 10 healthy college students the right-foot and left-foot lengths are given (in mm). Length in mm mean Left foot (x) 260 280 262 259 268 256 257 256 262 240 260 10.077477638554 Right foot (y) 261 249 262 238 258.7 10.5625123274089 d = x-y 1 3 2 5 -1 -2 -4 7 0 2 1.3 3.26768691550733 (a) Find the test statistic. (b) Test the claim at the 0.05 significance level. Positive critical value: Negative critical value: Is there sufficient data to support the claim? Yes O No