Answer:
3
Step-by-step explanation:
d=-3
-d=-(-3)=3
When you draw a horizontal line through the given solution point, you find it intersects the unit circle at 150°. Thus the appropriate choice for the remaining solutions will be
... 30° + n•360°, 150° + n•360°
p = 0.25
q = 1 - p = 0.75
x = 82
n = 400
psample = x/n = 82/400 = 0.205
test statistic, z = (psample - p) / sqrt(pq/n) = (0.205 - 0.25) / sqrt(0.25×0.75/400) = -2.078
Answer: From least to greatest, it goes: -3.75, -0.55, -1/2 -3%, -1/5