68% = mean ± .995 SEm = 3.2454 ± .995(.0309)?
.995(.0309) = .0307455
3.2146545 to 3.2761455
I'm not sure what SD and SE symbolize.
Given the sample mean of GPA, the sample SD, and the SE below:
SM: 3.2454
SD: 0.4635
SE: 0.0309
construct a 68% confidence interval for the population mean gpa
My answer is: 0.4635 to 3.7089
3 answers
Standard Deviation
Standard Error
Standard Error
THESE ARE WRONG