Hargrove Wood Products is a wood products company with lumber, plywood, and paper plants in several areas of the United States. At its La Grande, Oregon, plywood plant, the company makes plywood used in residential and commercial building. One product made at the La Grande plant is 3/8-inch plywood, which must have a mean thickness of 0.375 inches. The standard deviation, ơ, is known to be 0.05 inch. Before sending a shipment to customers, Hargrove managers test whether they are meeting the 0.375-inch requirements by selecting a random sample of n = 100 sheets of plywood and collecting thickness measurements. Null and Alternative Hypothesis: HO: µ H1: µ

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Linear Algebra

In mathematics, problems can be solved by the arithmetic operators like addition, subtraction, multiplication, and division. In algebra, we represent the numbers by any letter called a variable. If these variables are of degree 1, then it is studied under linear algebra. The first-degree equations involving algebraic expressions are called linear equations. That is, if you represent it by drawing a graph you will get a straight line.