Question

Does the job satisfaction of assembly-line workers differ when their work is machine-paced rather than self-paced? One study chose 18 subjects at random from a company with over 200 workers who assembled electronic devices. Half of the workers were assigned at random to each of two groups. Both groups did similar assembly work, but one group could pace itself, while the other group used an assembly line that moved at a fixed pace. After two weeks, all the workers took a test of job satisfaction. Then they switched work setups and took the test again after two more weeks. The response variable is the difference in satisfaction scores, self-paced minus machine-paced.

Which one should be the alternative hypothesis here?
A. the job satisfaction of assembly-line workers differ
B. the job satisfaction of assembly-line workers dose not differ

Answer 1

The alternative hypothesis for the study on assembly-line workers regarding job satisfaction should state there is a difference when work is self-paced versus machine-paced, which corresponds to option A. The correct answer is option a.

Step-by-step explanation:

The study in question is designed to establish whether job satisfaction among assembly-line workers changes based on whether their work is self-paced or machine-paced. In formulating a hypothesis for a study like this, the null hypothesis (H0) typically states that there is no effect or difference, while the alternative hypothesis (H1) states that there is an effect or difference.

Therefore, the correct alternative hypothesis in this scenario would be that job satisfaction of assembly-line workers does differ when their work is self-paced as opposed to machine-paced. Hence, the answer is A. the job satisfaction of assembly-line workers differ.