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For more information, please see full course syllabus of Statistics
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Lecture Comments (9)

1 answer

Last reply by: Henri Johnson
Tue Feb 10, 2015 7:28 PM

Post by Bonnie Polson on February 28, 2013

What is this table that he keeps bringing up?

2 answers

Last reply by: peter alabi
Sun Mar 15, 2015 2:38 PM

Post by Amardeep Vedi on February 5, 2012

He should have used a t-distribution for the speedlimit example...

3 answers

Last reply by: James Xie
Wed Feb 8, 2012 10:10 PM

Post by Christopher Manna on August 29, 2011

Where does the n>=30 come in to play in this example??

Applications of the Sampling Distribution of the Sample Mean

  • The sample mean can be standardized (converted to a “z-score”) by subtracting μ from x and dividing by the difference by x’s standard deviation.

  • Draw a picture of the curve and shade in the interval of which you want to find the probability.

Applications of the Sampling Distribution of the Sample Mean

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Example 1: Speed Limit 0:08
  • Example 2: Speed Limit 2:50
  • Example 3: Speed Limit 4:20
  • Example 4: Study Times 6:20
  • Example 5: Study Times 9:02
  • Extra Example 1
  • Extra Example 2