An agricultural company wanted to study the effect of location on the growth of wheat. They selected plots of land in three different areas to plant wheat. They planted the wheat seeds and then waited one month. After that, they measured the height of a random sample of 8 wheat plants from each of the three plots. They would like to test the hypothesis that there is a difference in the mean height of wheat between the three plots. Assume all requirements are satisfied. Use this information to answer all the following parts. Part 1: State the null and alternative hypothesis for this study. Group of answer choices H0 : ud = 0 Ha : ud =(does not equal) 0 H0 : u1 = u2 = u3 Ha : u1 =(does not equal) u2 =(does not equal) u3 H0 : u1 = u2 = u3 At least one mean differs H0 : u1 = u2 = ... = u8 Ha : u1 =(does not equal) u2 =(does not equal) ... =(does not equal) u8 H0 : u1 = u2 = ... = u8 at least one mean differs