Enjoy learning Statistics Online! Please be sure to share and subscribe to our YouTube channel.


Course Documents

Chapter 1 - Intro

Chapter 2 - Methods for Describing Sets of Data

Chapter 3 - Probability

Chapter 4 - Discrete Random Variables

Chapter 5 - Normal Random Variables

Chapter 6 - Sampling Distributions

Chapter 7 - Confidence Intervals

Chapter 8 - Tests of Hypothesis: One Sample

Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples

Sample Exam I: Chapters 1 & 2

Sample Exam II: Chapters 3 & 4

Sample Exam III: Chapters 5 & 6

Sample Exam IV: Chapters 7 & 8

Example 157.4

Example 157.4 Orange trees at a citrus farm near Orlando were randomly assigned to one of three new fertilizers or the traditional fertilizer being used already.  The new fertilizers are supposed to produce heavier oranges.  Researchers tested the claim that at least one of the new fertilizers produce a heavier orange. The following result were produced using Minitab (a statistical software package). Interpret the output. 

« back