The Anderson Lumber Company Has Three Sawmills That Produce Boards

question 68

Multiple Choice

The Anderson Lumber Company has three sawmills that produce boards of different lengths.The following table is a joint frequency distribution based on a random sample of 1,000 boards selected from the lumber inventory. Based on these data,the probability of selecting a board from inventory that is 10 feet long is:

• A)0.196
• B)0.450
• C)0.084
• D)0.170

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Definitions:

Population Means

The average of a set of characteristics or measurements for an entire population.

Alternative Hypothesis

A hypothesis that is adopted when there is sufficient evidence to reject the null hypothesis, often denoted H1.

Population Proportion

The ratio or fraction of members in a population that have a particular characteristic, often denoted by P.

Sample Proportion

The fraction of the sample that displays a certain property or characteristic.