Answer:
The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
For this problem, we have that:
Sample of 421 new car buyers, 75 preferred foreign cars. So 
85% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).
Y=2/3x-3. Follow the formula y=Mx+b. M is the slope, and b is the y intercept.
= -10x^2 - 6xy + 6xz
hope it helps
What is the product? I cannot help you if I don't know the product..
Answer:
the answer is A because 3 + 5 is 8 :) made a 100 btw :3
Step-by-step explanation: