Questions from Business Statistics


Q: Researchers have linked an increase in the incidence of breast cancer in

Researchers have linked an increase in the incidence of breast cancer in Italy to dioxin released by an industrial accident in 1976. The study identified 981 women who lived near the site of the accid...

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Q: In 2002, the journal Science reported that a study of women

In 2002, the journal Science reported that a study of women in Finland indicated that having sons shortened the life spans of mothers by about 34 weeks per son, but that daughters helped to lengthen t...

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Q: Scientists at a major pharmaceutical firm investigated the effectiveness of an herbal

Scientists at a major pharmaceutical firm investigated the effectiveness of an herbal compound to treat the common cold. They exposed each subject to a cold virus, then gave him or her either the herb...

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Q: The May 4, 2000, issue of Science News reported that

The May 4, 2000, issue of Science News reported that, contrary to popular belief, depressed individuals cry no more often in response to sad situations than non-depressed people. Researchers studied 2...

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Q: Some people who race greyhounds give the dogs large doses of vitamin

Some people who race greyhounds give the dogs large doses of vitamin C in the belief that the dogs will run faster. Investigators at the University of Florida tried three different diets in random ord...

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Q: Some people claim they can get relief from migraine headache pain by

Some people claim they can get relief from migraine headache pain by drinking a large glass of ice water. Researchers plan to enlist several people who suffer from migraines in a test. When a particip...

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Q: A dog food company wants to compare a new lower-calorie

A dog food company wants to compare a new lower-calorie food with their standard dog food to see if it effective in helping inactive dogs maintain a healthy weight. They have found several dog owners...

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Q: Athletes who had suffered hamstring injuries were randomly assigned to one of

Athletes who had suffered hamstring injuries were randomly assigned to one of two exercise programs. Those who engaged in static stretching returned to sports activity in a mean of 15.2 days faster th...

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Q: Pew Research compared respondents to an ordinary 5-day telephone survey

Pew Research compared respondents to an ordinary 5-day telephone survey with respondents to a 4-month-long rigorous survey designed to generate the highest possible response rate. They were especially...

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Q: Exercise 21 describes an experiment that showed that high doses of omega

Exercise 21 describes an experiment that showed that high doses of omega-3 fats might be of benefit to people with bipolar disorder. The experiment involved a control group of subjects who received a...

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