A study to compare two methods of preserving wood started with boards of souther
ID: 3219613 • Letter: A
Question
A study to compare two methods of preserving wood started with boards of southern white pine. A researcher collected 20 boards of southern white pine from several wood working shops. Each board was ripped from end to end to form two pieces. Then, a randomly selected piece among the two was assigned to Method A; the other to Method B. What is the name of this study design?
a. A block design
b. A matched Pair design
c. A probability sampling design
d. A completely randomized design.
Please explain why one is correct and the others are not.
Explanation / Answer
A completely randomised design ,option 4 is correct. Because this design is randomly selected.
A block design is wrong because ,there is not available blocks.
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