Use the Confidence Level and Sample Data to Find a Confidence

question 66

Multiple Choice

Use the confidence level and sample data to find a confidence interval for estimating the population µ. Round your answer to the same number of decimal places as the sample mean.
-A group of 64 randomly selected students have a mean score of $38.6$ with a standard deviation of $4.9$ on a placement test. What is the $90 \%$ confidence interval for the mean score, $\mu$ , of all students taking the test?

• A) \(37.4 < \mu < 39.8\)
• B) \(37.2 < \mu < 40.0\)
• C) \(37.6 < \mu < 39.6\)
• D) \(37.0 < \mu < 40.2\)

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Definitions:

Chlorophyll A

A type of chlorophyll that is the primary photosynthetic pigment in plants, allowing them to absorb light most efficiently.

Vascular Tissue

The specialized system of tubes and cells in plants that conduct water, nutrients, and sugars.

Desmosomes

Cell structures specialized for cell-to-cell adhesion, serving as anchoring junctions in areas of mechanical stress, such as skin and cardiac muscle.

Vascular Tissue

Plant tissue responsible for transporting water, nutrients, and sugars between different parts of the plant.