(b) A random sample of sixteen (16) SDC workers taken from the management level of the company gives amean 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 ofvarious employees at different levels of the organization. She categorized the jobs into levels of seniority 1to 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 randomfrom each of the twelve levels she collected the following data:

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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?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Question

(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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