Skip to main content
Statistics LibreTexts

20.16: Shaking and Stirring Martinis

  • Page ID
    2538
  • Skills to Develop

    • To test the difference between shaken and stirred martinis

    martini.jpg

    Research conducted by

    This is just made up data. 

    Case study prepared by

    David Lane 

    Overview

    This is an example to illustrate hypothesis testing and the binomial distribution. The statistician R. Fisher explained the concept of hypothesis testing with a story of a lady tasting tea. Here is an example based on James Bond who insisted that Martinis should be shaken rather than stirred. In this hypothetical experiment to determine whether Mr. Bond could tell the difference between a shaken and a stirred martini, we gave Mr. Bond a series of \(16\) taste tests. In each test, we flipped a fair coin to determine whether to stir or shake the martini. Then we presented the martini to Mr. Bond and asked him to decide whether it was shaken or stirred. Mr. Bond was correct on \(13/16\) trials.

    Questions to Answer

    Does Mr. Bond have the ability to tell the difference between a Martini that is shaken and one that is stirred? 

    Design Issues 

    This is only a made-up study. 

    Descriptions of Variables

    Table \(\PageIndex{1}\): Description of Variables

    Variable Description
    Y 0 = incorrect, 1 = correct

    Data Files

    Martini.xls 

    References

    • Salsburg, D. (2002) The Lady Tasting Tea: How Statistics Revolutionized Science in the Twentieth Century. Owl Books

    Contributor

    • Online Statistics Education: A Multimedia Course of Study (http://onlinestatbook.com/). Project Leader: David M. Lane, Rice University.