A sample of 42 chemists from Washington state shows an average salary of $39,420 with a standard deviation of $1659, while a sample of 36 chemists from New Mexico has an average salary of $30,215 with a standard deviation of $4116. a. Is there a significant difference between the two states in chemists’ salaries at α = 0.02? b. Find the 98% confidence interval of the difference in the means.

A sample of 42 chemists from Washington state shows an average salary of $39,420 with a standard deviation of $1659, while a sample of 36 chemists from New Mexico has an average salary of $30,215 with a standard deviation of $4116. a. Is there a significant difference between the two states in chemists’ salaries at α = 0.02? b. Find the 98% confidence interval of the difference in the means.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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