The frequency of electrical impulse emitted from electric fish is measured from three fish at each of several temperatures. The resultant data are as follows: Temperature (C) Impulse frequency (number/sec) 20 225, 230, 239 22 251, 259, 265 23 266, 273, 280 25 287, 295, 302 27 301, 310, 317 28 307, 313, 325 30 324, 330, 338 1. Compute the intercept (a) and slope (b) for the linear regression equation relating impulse frequency to temperature. 2. Test, by t-test, the hypothesis H0: = 0. 3. What are the standard errors of the regression parameters? 4. Calculate the coefficient of determination