hwk2 - STAT 8200 Design of Experiments for Research Workers...

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Unformatted text preview: STAT 8200 Design of Experiments for Research Workers Homework 2 Due Thursday, September 16 SHOW ALL WORK Read Chapters 15 of our text (the book by Oehlert). In addition do the following problems. 1. The data in the table below show the measurements of hemoglobin (grams per 100 ml) in the blood of brown trout. The trout were placed at random in four different troughs (tanks). The fish food added to the troughs contained, respectively, 0, 5, 10, and 15 grams of sulfamerazine per 100 lbs. of fish. The measurements were made on ten randomly selected fish from each trough after 35 days. Sulfamerazine Hemoglobin 6.7 7.8 5.5 8.4 7.0 7.8 8.6 7.4 5.8 7.0 5 9.9 8.4 10.4 9.3 10.7 11.9 7.1 6.4 8.6 10.6 10 10.4 8.1 10.6 8.7 10.7 9.1 8.8 8.1 7.8 8.0 15 9.3 9.3 7.2 7.8 9.3 10.2 8.7 8.6 9.3 7.2 a. Plot the data (hemoglobin versus amount of sulfamerazine) and comment on the results. Does it look like the mean response differs across the four treatment groups?...
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hwk2 - STAT 8200 Design of Experiments for Research Workers...

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