SOLUTION: Construct a 90% confidence interval for the population mean, μ. Assume the population has a normal distribution. A sample of 15 randomly selected math majors has a grade poi

Algebra.Com
Question 821570: Construct a 90% confidence interval for the population mean, μ. Assume the population has a
normal distribution. A sample of 15 randomly selected math majors has a grade point average of
2.86 with a standard deviation of 0.78.

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

A sample of 15 randomly selected math majors has a grade point average of 

2.86 with a standard deviation of 0.78. 

ME =  = 

90% confidence interval for the population mean, μ.

  2.86 - ME <  < 2.86 + ME 

RELATED QUESTIONS


Use the given degree of confidence and sample data to construct a confidence interval for  (answered by stanbon,jim_thompson5910)

Construct a 95% confidence interval for the population mean, μ. Assume the... (answered by ewatrrr)

Construct a 95% confidence interval for the population mean, μ. Assume the... (answered by Boreal)

: Use the given degree of confidence and sample data to construct a confidence interval... (answered by Boreal)

Use the given degree of confidence and sample data to construct a confidence interval for  (answered by stanbon)

A sample of 20 elements produced a mean of 81.4 and a standard deviation of 10.44.... (answered by Boreal)

A sample of 20 elements produced a mean of 81.4 and a standard deviation of 10.44.... (answered by Boreal)

Use the given degree of confidence and sample data to construct a confidence interval for  (answered by ewatrrr)

What is the random sample of 7,9,6,,85,1, from normal distribution
Construct a 90%... (answered by stanbon)