Answer:
- 3rs
Step-by-step explanation:
6rs — 7bc (-) 9rs — 7bc = 6rs - 7bc - 9rs - 7bc
=6rs - 9rs - 7bc - 7bc (collecting the like terms)
= - 3rs
Answer:
143
Step-by-step explanation:
180 - 37 = 143.
We know this because y + 37 = 180
so we can does 180-37 to get our answer.
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).
The width is 8 because 4x8=32
The value of m2 is 1/7(m1 + 54)