Answer:
<em>Well, The best answer will be is </em><em>y = 2. Good Luck!</em>
Answer is 4.
Right angle= 90
50+ 10(4)= 90
Answer:
The 90% confidence interval for the population proportion who knew about the incentives is (0.28, 0.44).
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:

90% 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 90% confidence interval for the population proportion who knew about the incentives is (0.28, 0.44).
Answer: C
Step-by-step explanation:
y2-y1/x2-x1
-9+7/5-6 = 2