Answer:
Its D
Step-by-step explanation:
Its D because a, b,c are not actually answer there are what the variable are so the answer is D also tell me if you got it right.
A) -2
Explanation on pictures
For step 3 where it says Simplify the only thing it has is -2
Answer:
a) (59180,60820)
b) (59020,60980)
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = $60,000
Standard Deviation, σ = $5,000
Sample size, n = 100
a) 90% critical values
Putting the values, we get,

b) 95% critical values
Putting the values, we get,

Answer:
B
Step-by-step explanation:
C would also be the correct answer but its not rounded to the nearest tenth.