Question 10 (1 point) Determine if the following study is a good candidate for b

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Question 10 (1 point)

Determine if the following study is a good candidate for blocking:

An experiment was performed to determine the effect of four different chemicals on the strength of a fabric. Five fabric samples were selected and each chemical was tested once in random order on each fabric sample.

Question 10 options:

None of the variables would qualify as a blocking variable

Fabric sample would be the blocking variable

Chemical would be the blocking variable

Strength of the fabric would be the blocking variable

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Question 11 (1 point)

Determine if the following study is a good candidate for blocking:

It is known that the life span of a particular type of root system is influenced by the amount of watering it receives and its depth. An experiment is designed to study the effect of three watering regimens and their possible interaction with the depth factor (3 levels). The life spans of five root systems were recorded for each factor-level combination.

Question 11 options:

Depth would be the blocking variable

None of the variables would qualify as a blocking variable

Watering regimen would be the blocking variable

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Question 12 (1 point)

Which of the following statements is NOT correct?

Question 12 options:

If you only have one replicate for each treatment in a 2 factor study, you cannot test your assumptions of constant variance and normal residuals.

If you only have one replicate for each treatment in a 2 factor study, you do not have enough degrees of freedom to test the interaction.

If you only have one replicate for each treatment in a 2 factor study, the sum of squares of the interaction and the sum of squares for residuals is the same.

If you only have one replicate for each treatment in a 2 factor study, you have violated one of the main principles of experimental design and cannot estimate main effects or interactions.

None of the variables would qualify as a blocking variable

Fabric sample would be the blocking variable

Chemical would be the blocking variable

Strength of the fabric would be the blocking variable

Explanation / Answer

#Question 10 Second option is right Fabric sample would be the blocking variable because, categorization variable for information within a dataset that is used to control, test, or manipulate the distribution and statistical results. These variables should be observed, reliable, and unchanging and here fabice sample is dat variable.

#Question 11. First option is right Depth would be the blocking variable here like as above ans here depth is dat varible who is a categorization variable for information within a dataset that is used to control.

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