# Understanding Hemoglobin Levels and Confidence Intervals## Hemoglobin Levels in Adult FemalesA study measured hemoglobin levels (g/dL) in 100 randomly selected adult females, using a confidence level of 95%.### Statistical Output:- **Confidence Interval (CI) for Mean (μ):** 12.943 < μ < 13.509- **Sample Mean (x̄):** 13.126- **Sample Standard Deviation (Sx):** 1.428- **Sample Size (n):** 100## Questions and Concepts### a. Expressing Confidence IntervalsExpress the confidence interval in a "less than" format, using two decimal places for accuracy. - **Format:** g/dL < μ < g/dL### b. Point Estimate and Margin of ErrorIdentify the best point estimate of μ and calculate the margin of error from the confidence interval.### c. Distribution AssumptionsExplain why confirmation of a normal distribution isn't necessary when constructing the confidence interval for this sample size.## Interactive ComponentInput boxes are provided for students to practice expressing the confidence intervals in the correct format and to solve related questions.

a) From the output, the confidence interval is (12.943, 13.509).

Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL.) in 100 randomly selected adult females. The confidence level of 95% was used. a. Express the confidence interval in the format that uses the Tess than" symbol. Assume that the original listed data use two decimal places, and round the confidence interval limits accordingly. b. Identify the best point estimate of u and the margin of error c. In constructing the confidence interval estimate of p, why is it not necessary to confirm that the sample data appear to be from a population with a normal distribution? a. Express the confidence interval in the format that uses the "less than" symbol. Assume that the original listed data use two decimal places, and round the confidence interval limits accordingly.

Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL.) in 100 randomly selected adult females. The confidence level of 95% was used. a. Express the confidence interval in the format that uses the Tess than" symbol. Assume that the original listed data use two decimal places, and round the confidence interval limits accordingly. b. Identify the best point estimate of u and the margin of error c. In constructing the confidence interval estimate of p, why is it not necessary to confirm that the sample data appear to be from a population with a normal distribution? a. Express the confidence interval in the format that uses the "less than" symbol. Assume that the original listed data use two decimal places, and round the confidence interval limits accordingly.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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