MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The ages of a group of 124 randomly selected adult females have a standard deviation of 17.2 years. Assume that the ages of female statistics students have less variation than ages of females in the general​ population, so let σ=17.2 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics​ students? Assume that we want 95​% confidence that the sample mean is within​one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general​ population?

**Sample Size and Age Variation in Female Statistics Students**

**Required Sample Size:**
The required sample size is ____.
*(Round up to the nearest whole number as needed.)*

**Question:**
Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population?

**Options:**
- **A. Yes, because statistics students are typically younger than people in the general population.**
- **B. No, because statistics students are typically older than people in the general population.**
- **C. No, because there is no age difference between the population of statistics students and the general population.**
- **D. Yes, because statistics students are typically older than people in the general population.**

Ensure to analyze the options before selecting the most appropriate answer based on the context of typical age distributions in student populations compared to the general population.
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Transcribed Image Text:**Sample Size and Age Variation in Female Statistics Students** **Required Sample Size:** The required sample size is ____. *(Round up to the nearest whole number as needed.)* **Question:** Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? **Options:** - **A. Yes, because statistics students are typically younger than people in the general population.** - **B. No, because statistics students are typically older than people in the general population.** - **C. No, because there is no age difference between the population of statistics students and the general population.** - **D. Yes, because statistics students are typically older than people in the general population.** Ensure to analyze the options before selecting the most appropriate answer based on the context of typical age distributions in student populations compared to the general population.
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