Answer:
The correct answer is "1668". A further solution is provided below.
Step-by-step explanation:
According to the question,
Estimated proportion,
Margin of error,
E = 0.02
Level of confidence,
= 90%
= 0.90
Critical value,
Now,
⇒ 
or,
Answer: The third one
C.
Step-by-step explanation:
Answer:
12.083
Explanation:
Plug into a calculator.
Answer:
Step 1: Set the expression inside the square root greater than or equal to zero. Step 2: Solve the equation found in step 1. In this case, we divided by a negative number, so had to reverse the direction of the inequality symbol. Step 3: Write the answer using interval notation.
