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(b) A random sample of sixteen (16) SDC workers taken from the management level of the company gives a mean monthly salary of $17,000 with a standard deviation of $5500. What is the 98% confidence interval for the population mean of management level employees?

(b) A random sample of sixteen (16) SDC workers taken from the management level of the company gives a mean monthly salary of $17,000 with a standard deviation of $5500. What is the 98% confidence interval for the population mean of management level employees?

MATLAB: An Introduction with Applications
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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b and c please. 

(b) A random sample of sixteen (16) SDC workers taken from the management level of the company gives a mean monthly salary of $17,000 with a standard deviation of $5500. What is the 98% confidence interval for the population mean of management level employees? (c) The HR manager at Swift Delivery Company (SDC) has been investigating the level of job satisfaction of various employees at different levels of the organization. She categorized the jobs into levels of seniority 1 to 12, with 12 being the most senior and 1 being the least senior. The CEO and Board of Directors (levels 13 - 14) were not surveyed. Job satisfaction was rated as a score out of 80. Choosing one person at random from each of the twelve levels she collected the following data:
Transcribed Image Text:(b) A random sample of sixteen (16) SDC workers taken from the management level of the company gives a mean monthly salary of $17,000 with a standard deviation of $5500. What is the 98% confidence interval for the population mean of management level employees? (c) The HR manager at Swift Delivery Company (SDC) has been investigating the level of job satisfaction of various employees at different levels of the organization. She categorized the jobs into levels of seniority 1 to 12, with 12 being the most senior and 1 being the least senior. The CEO and Board of Directors (levels 13 - 14) were not surveyed. Job satisfaction was rated as a score out of 80. Choosing one person at random from each of the twelve levels she collected the following data:
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