10. The results of a comparison of four popular minivans are reported in the following table. One of the features the researchers compared was the distance (in feet) required for the minivan to come to a complete stop when traveling at a speed of 60 miles per hour (braking distance). Suppose the braking distances were measured for five minivans of each type with the following results. Table for Exercise 10 - Braking Distances (Feet) Minivan A Minivan B Minivan C Minivan D 150 153 155 167 152 150 150 164 151 156 157 169 149 151 158 162 153 155 155 173 a. Can the researchers conclude at = 0.10 that there is a difference among average braking distances for the four minivan models? b. What assumptions did the researchers make in performing the test procedure in part a.? Do the data appear to satisfy these assumptions? Explain.