The following are four observations collected from each of three treatments. Test the hypothesis that the treatment means are equal. Use the 0.05 significance level. Treatment 1 Treatment 2 Treatment 3 8 3 3 6 2 4 10 4 5 9 3 4 State the null and the alternate hypothesis.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)