Given two independent random samples with the following results:\[\begin{align*}n_1 &= 15 & n_2 &= 15 \\\bar{x}_1 &= 149 & \bar{x}_2 &= 165 \\s_1 &= 32 & s_2 &= 33 \\\end{align*}\]Use this data to find the 95% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed.**Step 1 of 3**: Find the point estimate that should be used in constructing the confidence interval.

From the provided information,Confidence level = 95%

Answered: Given two independent random samples…

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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A&B&C&D
The confidence interval for the difference between two population means that are normally distributed where the population variances are unknown but assumed to be equal rely on: A. the average sample variance. B. the Satterthwaite's approximation. C. the pooled sample variance. D. the estimated sample variance.
Step 2 of 2: Draw a conclusion and interpret the decision.
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