The table shows the effect of education on annual income. Based on the data in the table, how much more does a person with an Ba
chelor’s degree earn than a person with only a high school diploma over 10 years?
A) $20,800
B) $29,690
C) $208,000
D)$290,690
A) $20,800
B) $29,690
C) $208,000
D)$290,690
1 answer:
You might be interested in
About 102.5625... I think
Answer:
The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).
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:
92% 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 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).