Answer:
it's C.
Step-by-step explanation:
Hope that helped :D
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: One inch represented 3 feet in the first scale, but now 1 inch now represents 4 feet in the second scale.
5 divides by 2 is 2.5 I hope that hekos
(13*13) + (28*28) = 953
square root = 30.8706…
31cm