A Research Project Studied the Physical Properties of Wood Materials

question 49

Multiple Choice

A research project studied the physical properties of wood materials constructed by bonding together small flakes of wood.The two factors considered were the size of the flakes and species of tree.The sizes of the flakes were S1: 0.15 inches by 2 inches and S2: 0.25 inches by 2 inches,and the species of tree used were aspen,birch,and maple.For each combination of flake size and tree species,three samples of wood material were constructed.For each sample,the physical property measured was the tension modulus of elasticity in the direction perpendicular to the alignment of the flakes,in pounds per square inch (psi) . The table below gives the means for the different size-species groups: For these data,a two-way ANOVA was run and the partial ANOVA table is given below. What is the value of the degrees of freedom for the model,DFM?

• A)1
• B)2
• C)5

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Definitions:

Cost of Materials Used

The total cost of raw materials that have been consumed in the production process, directly contributing to the manufacture of products.

Current Ratio

A liquidity ratio that measures a company's ability to pay off its short-term liabilities with its short-term assets.

Short-Term Debt

Financial obligations due within one year, often used to finance day-to-day operations or immediate expenses.

Horizontal Analysis

Horizontal analysis is a financial analysis technique that compares line items in financial statements over a series of periods to identify trends and growth patterns.