Answer:
(0.095, 0.165)
Step-by-step explanation:
Confidence interval :
Phat ± margin of error
Margin of Error = 0.035
Phat = x / n
Phat = 11 / 85 = 0.1294117
Hence,
Phat ± 0.035
Lower boundary = 0.1294117 - 0.035 = 0.0944
Upper boundary = 0.1294117 + 0.035 = 0.1644
(0.0944, 0.1644)
Answer: (0.685, 0.735)
Explanation:
First, we will compute the confidence level of the given:

They gave us a margin of error of 0.025. From the given, we know that p=71%=0.71.
The confidence interval would then be:

Therefore, the confidence interval would then be (0.685, 0.735)
Answer:
B.
Step-by-step explanation:
The vertical line test is what I used to test this.
Answer:
Hourly rate: $17.
Hourly overtime rate: $25.5.
Step-by-step explanation:
Let x represent Jim's hourly pay.
We have been given that Jim worked 40 hours last week. So amount paid in 40 hours would be
.
We are also told that his over time pay is time-and-a-half rate that is
.
The amount earned for working 8 overtime hours would be
.
Since Jim's gross pay was $884, so we will equate amount earned in 40 hours and 8 hours of overtime with 884 as:




Therefore, Jim's hourly rate is $17.
Overtime rate would be 
Therefore, Jim's hourly overtime rate is $25.5.