Answer:
Step-by-step explanation:
(-32)^3/5 =((-32)^1/5)^3 = (-2)^3 = -8. QED
Answer:
B. 12.5
Step-by-step explanation:
We have the lowe confidence interval = 185
The upper confidence interval = 210
Mean of X = (lower confidence + upper confidence interval)/2
Mean of X = 185 + 210/2
= 197.5
The margin of error = the upper confidence interval - mean of X
= 210-197.5
= 12.5
Graph B is the correct answer