Questions from Business Statistics

Q: One study comparing various treatments for the eating disorder anorexia nervosa initially

One study comparing various treatments for the eating disorder anorexia nervosa initially enlisted 198 subjects, but found overall that 105 failed to complete their assigned treatment programs. Constr...

Q: The U.S. Census Bureau reports that 36% of

The U.S. Census Bureau reports that 36% of all U.S. businesses are owned by women (www.entrepreneur.com/article/252048). A Colorado consulting firm surveys a random sample of 410 businesses in the Den...

Q: Medical literature says that about 8% of males are color-

Medical literature says that about 8% of males are color-blind. A university introductory psychology course is taught in a large lecture hall. Among the students, there are 325 males. Each semester wh...

Q: A newspaper report in August 2002 raised the issue of racial bias

A newspaper report in August 2002 raised the issue of racial bias in the issuance of speeding tickets. The following facts were noted: Sixteen percent of drivers registered in New Jersey are black. Of...

Q: To get a voter initiative on a state ballot, petitions that

To get a voter initiative on a state ballot, petitions that contain at least 250,000 valid voter signatures must be filed with the Elections Commission. The board then has 60 days to certify the petit...

Q: A college student is on a meal program. His budget allows

A college student is on a meal program. His budget allows him to spend an average of $10 per day for the semester. He keeps track of his daily food expenses for 2 weeks; the data are given in the tabl...

Q: Each year thousands of high school students take either the SAT or

Each year thousands of high school students take either the SAT or the ACT, standardized tests used in the college admissions process. Combined SAT Math and Verbal scores go as high as 1600, while the...

Q: In 2011, the Occupy Wall Street movement protested the concentration of

In 2011, the Occupy Wall Street movement protested the concentration of wealth and power in the United States. A 2012 University of Delaware survey asked a random sample of 901 American adults whether...

Q: Researchers in the Adirondack Mountains collect data on a random sample of

Researchers in the Adirondack Mountains collect data on a random sample of streams each year. One of the variables recorded is the substrate of the stream the type of soil and rock over which they flo...

Q: In February 2012, MedPage Today reported that researchers used vemurafenib to

In February 2012, MedPage Today reported that researchers used vemurafenib to treat metastatic melanoma (skin cancer). Out of 152 patients, 53% had a partial or complete response to vemurafenib. 1. Wr...