Mathematics, 02.04.2020 20:14 jdisalle476
What are the chances your flight will leave on time? Below are a histogram and summary statistics for the percentage of flights departing on time each month from thru 2006. There is no evidence of a trend overtime. Find a 90% confidence interval for the true percentage of flights that depart on time
Answers: 2
<81.1210
and 
, the confidence interval can be calculated using the formula:
![=\bar x\pm z\times \frac{\sigma}{\sqrt{n}}\\\\=\bar y\pm z_{0.05}\times \frac{s}{\sqrt{72}}\\\\=80.5833\pm 1.645\times \frac{2.77369}{\sqrt{72}}\\\\=80.5833\pm0.5377\\\\=[80.0456,81.1210]](/tpl/images/0578/3440/b34eb.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:50
The table represents a linear function. what is the slope of the function? –6 –4 4 6
Answers: 3
Mathematics, 21.06.2019 20:00
Last one and the bottom answer choice is y=(x-4)^2+1 you guys!
Answers: 1
Mathematics, 21.06.2019 20:50
Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost
Answers: 1
You know the right answer?
What are the chances your flight will leave on time? Below are a histogram and summary statistics fo...
Questions
Mathematics, 24.06.2019 21:00
Mathematics, 24.06.2019 21:00
Spanish, 24.06.2019 21:00
Mathematics, 24.06.2019 21:00
Business, 24.06.2019 21:00
Mathematics, 24.06.2019 21:00
Mathematics, 24.06.2019 21:00
Mathematics, 24.06.2019 21:00
