The monthly incomes from a random sample of workers in a factory are shown below.
a.
Compute the standard error of the mean (in dollars).
b.
Compute the margin of error (in dollars) at 95% confidence.
c.
Compute a 95% confidence interval for the mean of the population.Assume the population has a normal distribution.Give your answer in dollars.

Question

The monthly incomes from a random sample of workers in a factory are shown below.  ​ 
a.
Compute the standard error of the mean (in dollars).
b.
Compute the margin of error (in dollars) at 95% confidence.
c.
Compute a 95% confidence interval for the mean of the population.Assume the population has a normal distribution.Give your answer in dollars.
​

Quizplus · Accepted Answer

The Answer of The monthly incomes from a random sample of workers in a factory are shown below.  ​ 
a.
Compute the standard error of the mean (in dollars).
b.
Compute the margin of error (in dollars) at 95% confidence.
c.
Compute a 95% confidence interval for the mean of the population.Assume the population has a normal distribution.Give your answer in dollars.
​

The Monthly Incomes from a Random Sample of Workers in a Factory