 The judgment sample gave us a larger estimate of µ (≈ 6.7 letters) than the S.R.S. (≈ 4.3 letters)  The judgment sample showed more variability than.

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Presentation transcript:

 The judgment sample gave us a larger estimate of µ (≈ 6.7 letters) than the S.R.S. (≈ 4.3 letters)  The judgment sample showed more variability than the S.R.S.

 The S.R.S. was much more accurate in estimating µ.  Why? Because in our judgment sample, we tended to show bias towards the longer more interesting words.  Small words like “a” and “the” were rarely selected for a sample, even though they are probably the most common words in the speech.

 The plot of our samples ( n = 2) showed more variability than the plot of our size n =5 samples. The plot was still centered at the value of µ, showing that the method was unbiased like that for the size 5 samples.  Sample of size 15 would result in a dotplot that shows much less variability than the plot of size 5 samples.