Tahmid Knox
2021-10-08
Researchers ran a quality control study to evaluate the quality of plastic irrigation pipes. The study design involved a total of 24 pipes, with 12 pipes randomly selected from each of two manufacturing plants. The pipes were manufactured using one of two water temperatures and one of three types of hardeners. The compressive strength of each pipe was determined for analysis. The experimental conditions are as follows: Identify each of the following components of the experimental design.
a. factors
b. factor levels
c. blocks
d. experimental unit
e. measurement unit
f. replications
g. treatments
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Skilled2021-10-09Added 92 answers
Step 1
a) There are two factors:
1) Temperature
2) Hardener
Step 2
b) First factor, temperature is at the two levels:
Second factor, hardener is at three levels:
Step 3
c) Blocks are represented by type of plant used for manufacturing the pipes, i.e., plant 1 represents block 1, and plant 2 represents block 2
Step 4
d) Experimental units are pipes.
Step 5
Measurement units are pipes. Compressive stength of each pipe will be measured.
Note: Here both, experimental units and measurement units are same.
Step 6
f) There are two factors: temperature at two levels
Step 7
g) There are two factors: temperature at two levels
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