An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 2.7 mm, how many of these components should she consider to be 90% sure of knowing the mean will be within ±0.2 mm? O 23 3596 O 494 O 299 O 27 Submit Question

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**Question:**

An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 2.7 mm, how many of these components should she consider to be 90% sure of knowing the mean will be within ± 0.2 mm?

**Options:**

- 23
- 3596
- 494
- 299
- 27

**Explanation:**

This question involves statistical sampling to estimate the mean width of electronic components within a specified confidence level and margin of error. Using the known standard deviation (2.7 mm), the engineer must determine the appropriate sample size needed to achieve 90% confidence that the sample mean is within ± 0.2 mm of the true mean.
Transcribed Image Text:**Question:** An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 2.7 mm, how many of these components should she consider to be 90% sure of knowing the mean will be within ± 0.2 mm? **Options:** - 23 - 3596 - 494 - 299 - 27 **Explanation:** This question involves statistical sampling to estimate the mean width of electronic components within a specified confidence level and margin of error. Using the known standard deviation (2.7 mm), the engineer must determine the appropriate sample size needed to achieve 90% confidence that the sample mean is within ± 0.2 mm of the true mean.
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