Answer:
The correct answer would be chart A.
Step-by-step explanation:
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).
Answer:
w ≥ 6
Step-by-step explanation:
51 ≤ 15 +6w
51-15 ≤ 6w
36 ≤ 6w
6w ≥ 36
w ≥ 36/6
w ≥ 6
Answer:
17/400
Step-by-step explanation:
.0425 = 425/10,000
this can be simplified to be 17/400
Answer
y=9/3x
Step-by-step explanation: