-371 7/24
From quizlet made from balletskye20 with 16 terms
Answer:
a=10 b=30 c=20
Step-by-step explanation:
10+30=40 30+20=50 20+10=30
Answer: 32
Step-by-step explanation:
128 divided by 4 is 32 so u get 32 and 4 and multiply it and you get 32.
Answer:
a) n = 1037.
b) n = 1026.
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 
The margin of error is:

99% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
(a) Assume that nothing is known about the percentage to be estimated.
We need to find n when M = 0.04.
We dont know the percentage to be estimated, so we use
, which is when we are going to need the largest sample size.






Rounding up
n = 1037.
(b) Assume prior studies have shown that about 55% of full-time students earn bachelor's degrees in four years or less.

So






Rounding up
n = 1026.
Answer:
x=2.50
Step-by-step explanation:
But I am not sure if its positive or negative.