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gas mileage do cars get better gas mileage with premium instead of regular unleaded gasoline while it might be possible
weekend deaths a study published in the new england journal of medicine aug 2001 suggests that its dangerous to enter a
shingles a research doctor has discovered a new ointment that she believes will be more effective than the current
beetleshoping to learn how to control crop damage by a certain species of beetle a researcher plans to test two
sat prepcan special study courses actually help raise sat scores one organization says that the 30 students they
safety switchan industrial machine requires an emergency shutoff switch that must be designed so that it can be easily
washing clothes a consumer group wants to test the effectiveness of a new organic laundry detergent and make
skydiving anyone a humor piece published in the british medical journal parachute use to prevent death and major trauma
omega-3 finis exercises 3 2 and 1 describe an experiment investigating the effectiveness of omega-3 fats in treating
insomnia at last exercises 3 2 and 1 describe an experiment investigating the effectiveness of exercise in combating
shoes a running-shoe manufacturer wants to test the effect of its new sprinting shoe on 100-meter dash times the
fuel economy occasionally when i fill my car with gas i figure out how many miles per gallon my car got i wrote down
accountingbetween quarterly audits a company likes to check on its accounting procedures to address any problems before
happy workers a manufacturing company employs 14 project managers 48 foremen and 377 laborers in an effort to keep
quality control sammy s salsa a small local company produces 20 cases of salsa a day each case contains 12 jars and is
a fish story concerned about reports of discolored scales on fish caught downstream from a newly sited chemical plant
more sampling methods consider each of these situations do you think the proposed sampling method is appropriate
standardized test scores for his statistics class experiment researcher j gilbert decided to study how parents income
heart attacks and height researchers who examined health records of thousands of males found that men who died of
ms and vitamin d multiple sclerosis ms is an autoimmune disease that strikes more often the farther people live from
super bowl commercials when spending large amounts to purchase advertising time companies want to know what audience
menopause researchers studied the herb black cohosh as a treatment for hot flashes caused by menopause they randomly
honesty coffee stations in offices often just ask users to leave money in a tray to pay for their coffee but many