### Analyzing Student Counts in Different School Districts#### Objective:A school administrator wants to determine if there is a difference in the number of students per class between the Portland Public School district (group 1) and the Beaverton School district (group 2). It is assumed that the populations are normally distributed with unequal variances.#### Study Details:- **Portland Public School district (Group 1)**: - Sample Size: 28 classes - Mean: 34 students per class - Standard Deviation: 2- **Beaverton School district (Group 2)**: - Sample Size: 26 classes - Mean: 37 students per class - Standard Deviation: 4#### Task:Find a 90% confidence interval for the difference in the means. Use technology to determine the critical value using degrees of freedom (df = 36.1505) and round answers to four decimal places.#### Calculations:\[ \text{Enter the bounds for } \mu_1 - \mu_2 \]\[ \boxed{} < \mu_1 - \mu_2 < \boxed{} \]#### Explanation of Process:This involves calculating the confidence interval for the difference in means when dealing with two independent samples with unequal variances. Using technology to find the t-critical value for the given degrees of freedom (df = 36.1505), and applying the appropriate statistical formulas will yield the required confidence interval.This analysis allows the administrator to make an informed decision regarding the statistical difference between the class sizes in the two school districts.

using excel we find critical value

Answered: A school administrator wants to see if…

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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