A Rectangular Steel Plate with Dimensions of 40

question 5

Multiple Choice

A rectangular steel plate with dimensions of 40.0 cm × 30.0 cm is heated from 14.0°C to 164.0°C.What is its change in area? (Coefficient of linear expansion for steel is 11 × 10−⁶/C°. )

• A)8.96 cm²
• B)29.7 cm²
• C)3.96 cm²
• D)1.32 cm²
• E)9.90 cm²

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Definitions:

Type II Error

A statistical error that occurs when a false null hypothesis is not rejected, meaning a true effect is missed.

Chi-Squared Distribution

A probability distribution used in hypothesis testing that is applicable to categorical data and tests of independence.

Standard Normal Distribution

A normal distribution with a mean of zero and a standard deviation of one, used as a basis in probability theory.

Nominal Data

Nominal data refers to categorical data that can be named or labeled but not meaningfully ordered.