Dr. Smith is investigating whether squeezing a stress ball throughout the day improves job satisfaction levels in office workers. The mean job satisfaction level in the population is a score of 45 on the Job Satisfaction Inventory. Dr. Smith finds a sample of 100 office workers and has them squeeze a stress ball throughout the day at work for a period of 2 weeks. Dr. Smith then finds that the participants’ mean score on the Job Satisfaction Inventory is 50. The research question is whether squeezing a stress ball improves job satisfaction in office workers. What is the correct null hypothesis?
Dr. Smith is investigating whether squeezing a stress ball throughout the day improves job satisfaction levels in office workers. The mean job satisfaction level in the population is a score of 45 on the Job Satisfaction Inventory. Dr. Smith finds a sample of 100 office workers and has them squeeze a stress ball throughout the day at work for a period of 2 weeks. Dr. Smith then finds that the participants’ mean score on the Job Satisfaction Inventory is 50. The research question is whether squeezing a stress ball improves job satisfaction in office workers. What is the correct null hypothesis?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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Dr. Smith is investigating whether squeezing a stress ball throughout the day improves job satisfaction levels in office workers. The mean job satisfaction level in the population is a score of 45 on the Job Satisfaction Inventory. Dr. Smith finds a sample of 100 office workers and has them squeeze a stress ball throughout the day at work for a period of 2 weeks. Dr. Smith then finds that the participants’ mean score on the Job Satisfaction Inventory is 50. The research question is whether squeezing a stress ball improves job satisfaction in office workers. What is the correct null hypothesis?
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