O'Reilly logo

The Complete Idiot's Guide to Statistics, 2nd Edition by Robert Donnelly

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 15

1. H0 : µ = 1.7 , H1 : µ ≠ 1.7 n = 35, σ = 0.5 cups,860
Upper limit = µH 0 + zcσ = 1.7 + (1.64)(0.0845) = 1.84 cups
Lower limit = µH 0 - zcσ x = 1.7 - (1.64 ) (0.0845) = 1.56 cups
Since861cups, we reject H 0 and conclude that the population mean is not 1.7 cups per day.
2. H0 : µ ≥ 40 , H1 : µ < 40 , n = 50 , σ = 12.5 years,862zc = -1.64
Lower limit = µH0 + zcσ x = 40 + (-1.64 ) (1.768) = 37.1 years
Sinceyears, we do not reject H0 and ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required