The Texas Brass Foundry has invested a great deal of time and money in occupational safety training
Question:
The Texas Brass Foundry has invested a great deal of time and money in occupational safety training for its employees and believes its occupational-related sick days are now below national average. The population of all brass foundries was found to have a mean of 1.5 occupational-related sick days per 100 employees with a standard deviation of 0.3 days. Texas Brass randomly selects 100 employees and analyzed their employment files for the last year. The sample had a mean of 1.3 occupational related sick days. Is there sufficient evidence to support Texas Brass’s belief? α = 0.05.
Ho:_____________
Ha:_____________
Test Statistics: _______________________
Decision Rule: _______________________
Decision: _____________________
Interpretation: ___________________
Managerial Economics and Strategy
ISBN: 978-0321566447
1st edition
Authors: Jeffrey M. Perloff, James A. Brander