Last Wednesday, a random sample of 24 students were surveyed to
find how long it takes to walk from the Fretwell Building to the
college of education building. The survey team found a sample mean
of 12.3 minutes with a standard deviation of 3.2 minutes. assuming
walking time from Fretwell to College of education are normally
distribution, which of the following is the correct 95% confidence
interval for the population mean of walking times. A) 12.3LaTeX:
/pmLaTeX:±LaTeX:±(1.645)(LaTeX:
/frac{3.2}{/sqrt{24}}LaTeX:3.224√LaTeX:3.224) B) 12.3LaTeX:
/pmLaTeX:±LaTeX:±(1.90)(LaTeX:
/frac{3.2}{/sqrt{24}}LaTeX:3.224√LaTeX:3.224) C) 12.3LaTeX:
/pmLaTeX:±LaTeX:±(1.28)(LaTeX:
/frac{3.2}{/sqrt{24}}LaTeX:3.224√LaTeX:3.224) D) 12.3LaTeX:
/pmLaTeX:±LaTeX:±(2.575)(LaTeX:
/frac{3.2}{/sqrt{24}}LaTeX:3.224√LaTeX:3.224) E) 12.3LaTeX:
/pmLaTeX:±LaTeX:±(1.96)(LaTeX:
/frac{3.2}{/sqrt{24}}LaTeX:3.224√LaTeX:3.224) A E B C
