lecture_18_f01 - Statistics 400 - Lecture 18 Last Day:...

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Unformatted text preview: Statistics 400 - Lecture 18 Last Day: ANOVA Example, Paired Comparisons Today: Re-visit boys shoes...Randomized Block Design Example (Boys Shoes) Company ran an experiment to determine if a new synthetic material is better than the existing one used for making the soles of boys' shoes Experiment was run to see if the new, cheaper sole wears at the same rate at which the soles wear out Example (Boys Shoes) 10 boys were selected at random Each boy was given a pair of shoes Each pair had 1 shoe with the old sole (Sole A) and 1 shoe with the new sole (sole B) For each pair of shoes, the sole type was randomly assigned to the right or left foot Data A B 13.20 14.00 8.20 8.80 10.90 11.20 14.30 14.20 10.70 11.80 6.60 6.40 9.50 9.80 10.80 11.30 8.80 9.30 13.30 13.60 SOLE WEAR 16 14 12 10 8 6 Can we use a 2-sample t-test or ANOVA here? Would the 2-sample t-test or ANOVA detect a significant difference? Paired or Matched Pairs T-test Situation: Two measurements made on same experimental unit Compute difference (say B-A) in observation on the same experimental...
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lecture_18_f01 - Statistics 400 - Lecture 18 Last Day:...

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