A Random Sample of Electronic Components Had the Following Operational $\begin{array} { l l l l l } \hline 322 & 350 & 346 & 347 & 335 \\\hline 323 & 341 & 355 & 329 & \\\hline\end{array}$

question 53

Multiple Choice

A random sample of electronic components had the following operational times before failure, in hours.

$\begin{array} { l l l l l } \hline 322 & 350 & 346 & 347 & 335 \\\hline 323 & 341 & 355 & 329 & \\\hline\end{array}$

Assume the population standard deviation is $\sigma = 36$ and that the population is approximately normal. Construct a 90% confidence interval for the operational time before failure.

• A) (318.9, 358.4)
• B) (331.3, 346.1)
• C) (279.4, 397.9)
• D) (332.1, 345.3)

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Definitions:

Process

Process refers to a series of actions or steps taken to achieve a particular end.

Analytical Reports

Documents that present detailed analysis and interpretations of data or issues, often used to inform decision-making or problem-solving processes.

Proposals

Documents or presentations offering a plan or suggestion, often seeking approval or support for action.

Sampling Bias

A statistical error that occurs when a sample is not representative of the population from which it is drawn, potentially leading to distorted results.