What is the value of 780/60
2 answers:
You might be interested in
Answer:
The proportion of sampled students that complete their degree is 0.74.
The lower bound for the 95% confidence interval is 0.659 and the upper bound is 0.819.
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:
Rounded to two decimal places, the proportion of sampled students that complete their degree is 0.74.
95% 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 lower bound for the 95% confidence interval is 0.659 and the upper bound is 0.819.