The answer is ....<span>D. 2 ÷ 5..
Hope it helps !!!</span>
Answer:
$648.
Step-by-step explanation:
$400+50% = $600
$600+8%=$648
Answer:

Step-by-step explanation:
From the question we are told that:
Sample size 
Standard deviation 
Confidence level 
Degree of Freedom 
Therefore
Test T from table is given

Generally the equation for Confidence interval CI is mathematically given by



N+2 because n is the smallest number