Questions from Business Statistics

Q: Between quarterly audits, a company likes to check on its accounting

Between quarterly audits, a company likes to check on its accounting procedures to address any problems before they become serious. The accounting staff processes payments on about 120 orders each day...

Q: A manufacturing company employs 14 project managers, 48 supervisors, and

A manufacturing company employs 14 project managers, 48 supervisors, and 377 laborers. In an effort to keep informed about any possible sources of employee discontent, management wants to conduct job...

Q: Sammy Salsa, a small local company, produces 20 cases of

Sammy Salsa, a small local company, produces 20 cases of salsa a day. Each case contains 12 jars and is imprinted with a code indicating the date and batch number. To help maintain consistency, at the...

Q: Concerned about reports of discolored scales on fish caught downstream from a

Concerned about reports of discolored scales on fish caught downstream from a newly sited chemical plant, scientists set up a field station in a shoreline public park. For one week, they asked fisherm...

Q: In recent years, beaches around the world have seen fish washing

In recent years, beaches around the world have seen fish washing up on shore in large numbers. One group of scientists thought that leakage from the damaged Fukushima nuclear power plant in Japan migh...

Q: Consider each of these situations. Do you think the proposed sampling

Consider each of these situations. Do you think the proposed sampling method is appropriate? Explain. 1. We want to know what percentage of local doctors accept Medicaid patients. We call the offices...

Q: Consider each of these situations. Do you think the proposed sampling

Consider each of these situations. Do you think the proposed sampling method is appropriate? Explain. 1. We want to know if there is neighborhood support to turn a vacant lot into a playground. We spe...

Q: For his statistics class experiment, researcher J. Gilbert decided to

For his statistics class experiment, researcher J. Gilbert decided to study how parents income affects children performance on standardized tests like the SAT. He proposed to collect information from...

Q: A survey of the world nations in 2014 shows a strong positive

A survey of the world nations in 2014 shows a strong positive correlation between percentage of the country using smartphones and life expectancy in years at birth. 1. Does this mean that smartphones...

Q: Researchers who examined health records of thousands of males found that men

Researchers who examined health records of thousands of males found that men who died of myocardial infarction (heart attack) tended to be shorter than men who did not. 1. Is this an experiment? If no...