Question

In each graph, the shaded region represents the P-value of a hypothesis test. Find the P-value, given that the Standardized Test Statistic is Z = 0.7. Round to 4 decimals a. b. -3 -2 - 0 Z Q c. o Z

Answer 1

z = 0.7

(a) left tail:

P- value = 0.7580

Results Left-tailed p-value: P(Z <z) = 0.7580363 -7 -6 -5 0 1 2. 3 4 5 6 7 -4 -3 -2 -1 The p-value is the area to the left of z

(b) Right tail:

P-value = 0.2420

Results Right-tailed p-value: P(Z > Z) = 0.2419637 -7 -6 -5 -4 -3 -2 - 1 0 5 6 7 1 2 3 4 The p-value is the area to the right of z

(c) Two tail:

p-value = 0.4839

Results Two-tailed p-value: 2P(Z > Izl) = 0.4839273 -7 -6 -5 -4 4 5 6 7 -3 -2 -1 0 1 2 3 The p-value is twice the tail area beyond z