Consider the Following to Answer the Question(s) Below

question 1

Short Answer

Consider the following to answer the question(s) below:
A consumer group was interested in comparing the operating time of cordless toothbrushes manufactured by two different companies. They took a random sample of 18 toothbrushes from Company A and 15 from Company B. Each was charged overnight and the number of hours of use before needing to be recharged was recorded. Company A toothbrushes operated for an average of 119.7 hours with a standard deviation of 1.74 hours; Company B toothbrushes operated for an average of 120.6 hours with a standard deviation of 1.72 hours. Do these samples indicate that Company B toothbrushes operate more hours on average than Company A toothbrushes?
-Write the null and alternative hypotheses. Assume Company A is group 1 and Company B is group 2.

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Definitions:

Quality Of Working Life

A concept that involves improving work conditions, job satisfaction, and overall well-being of employees in their professional environments.

Job Satisfaction

A measure of how content an individual is with their job, which can affect their performance, loyalty, and overall workplace morale.

Product Quality

Refers to the measure of excellence or state of being free from defects, deficiencies, and significant variations, brought by stringent control over compliance with specified standards.

Quality Of Working Life

A concept that assesses the degree of satisfaction, well-being, and contentment of employees within their work environment and their job roles.