$\text { heights } h _ { a } = 42 \mathrm {~mm} \text { and } h _ { s } = 68 \mathrm {~mm} \text {, }$

question 9

Multiple Choice

$$\text { A composite beam of aluminum } \left( E _ { a } = 72 \mathrm { GPa } \right) \text { and steel } \left( E _ { s } = 190 \mathrm { GPa } \right) \text { has a width } b = 25 \mathrm {~mm} \text { and }$$ $\text { heights } h _ { a } = 42 \mathrm {~mm} \text { and } h _ { s } = 68 \mathrm {~mm} \text {, }$ , respectively. A bending moment is applied about the z axis resulting in a maximum stress in the aluminum of 55 MPa. The maximum stress in the steel is approximately: $\text { MPa. }$

• A) \(86 \mathrm { MPa }\)
• B) \(90 \mathrm { MPa }\)
• C) \(94 \mathrm { MPa }\)
• D) \(98 \mathrm { MPa }\)

Recognize the importance of clarity and organization in effectively communicating complex information.

Understand the strategic use of direct and indirect approaches in report writing based on audience reception.

Learn the essential elements of analytical report writing, including hypothesis formation and feasibility analysis.

Gain insights into best practices for effective recommendation and conclusion presentation in business reports.

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Definitions:

Sample Statistics

Measures or values calculated from a sample of data used to estimate population parameters.

Population Parameters

Quantitative characteristics or attributes defining a whole population, such as mean or standard deviation.

Sampling Distribution

The sampling distribution is a probability distribution of a statistic obtained through a large number of samples drawn from a specific population.

Standard Error

A statistical measure that quantifies the amount of variability or dispersion of a sample mean relative to the true population mean.