1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level. Give your answer to two decimal places.
2. In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $39 and standard deviation of $8. Find the margin of error at a 90% confidence level. Give your answer to two decimal places.
3. If n=20, (x-bar)=50, and s=20, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. ___ < μ < ___
4. If n=24, (x-bar)=36, and s=6, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. ___ < μ < ___
5. If n=19, (x-bar)=32, and s=3, construct a confidence interval
at a 90% confidence level. Assume the data came from a normally
distributed population. Give your answers to one decimal
place. ___ < μ < ___
1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level....
If n=15. (x-bar)=50, and s=9, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. <μ<
If n=14, ¯xx¯(x-bar)=45, and s=13, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place
1:41 ohm.lumenlearning.com If n=11, 7(x-bar)=44, and s=10, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. Submit Question
If n=13, ¯xx¯(x-bar)=47, and s=11, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place
If n=15, ¯xx¯(x-bar)=48, and s=15, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. < μμ < Submit Question
if n=27,(has a line on top of x)--> x(x-bar)=38, and s=20, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give answer in one decmil place.
If n=16, ū=35, and s=13, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. *<u<
If n=10, ¯ x x ¯ (x-bar)=49, and s=6, find the margin of error at a 98% confidence level Give your answer to two decimal places.
If n=11, 7(x-bar)-45, and s=7, find the margin of error at a 90% confidence level Give your answer to two decimal places.
part 1. A student was asked to find a 95% confidence interval for the proportion of students who take notes using data from a random sample of size n = 79. Which of the following is a correct interpretation of the interval 0.12 < p < 0.32? There is a 95% chance that the proportion of notetakers in a sample of 79 students will be between 0.12 and 0.32. There is a 95% chance that the proportion of the population...