Answer:
Step-by-step explanation:
From the question we are told that:
Sample size 
Mean 
Standard deviation 
Generally 99\% confidence from table is mathematically given by
Generally the equation for 99\% confidence level (CI) is mathematically given by
Answer:
_____________Y= -2X-10 __________
I think it is 39.8 I hoped I helped
3. 8(3+8)
Explanation : 8x3 = 24 + 8x8 =64 which is congruent to 24 +64
With the information provided, we can begin with the equation:
y=35x + b
With x = number of hours, y = total cost, b = fixed amount that is charged for residential work
We know that after 6 hours, $270 was charged:
$270 = $35(6) + b
Solve for b:
b = $270 - $210 = $60
The fixed amount that is charged for residential work is $60. So now we can rewrite the equation as:
y = 35x + 60
