Question

Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate table: z table or t table)

H₀: p₁ − p₂ ≥ 0
H_A: p₁ − p₂ < 0

x1 = 224	x2 = 236
n1 = 435	n2 = 435

a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)

Answer 1