Consider using a z test to test

h0: p = 0.9.

determine the p-value in each of the following situations. (round your answers to four decimal places.)

(a) ha: p > 0.9, z = 1.44
(b) ha: p < 0.9, z = −2.74
(c) ha: p ≠ 0.9, z = −2.74
(d) ha: p < 0.9, z = 0.23

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

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)

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?