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joan nguyen recently claimed that the proportion of college-age males with at least one pierced ear is as high as the
some manufacturers claim that non-hybrid sedan cars have a lower mean miles per gallon mpg than hybrid ones suppose
a new aids prevention drugs was tried on a group of 224 hiv positive patients forty-five 45 patients developed aids
indicate which of the following choices best identifies the hypothesis testa independent group means population
the mean number of english courses taken in a two-year time period by male and female college students is believed to
a study is done to determine if students in the california state university system take longer to graduate on average
a recent drug survey showed an increase in use of drugs and alcohol among local high school seniors as compared to the
a student at a four-year college claims that mean enrollment at four-year colleges is higher than at two-year colleges
a study was conducted by the us army to see if applying antiperspirant to soldiers feet for a few days before a major
we are interested in whether the proportions of female suicide victims for ages 15 to 24 are the same for the white and
one of the questions in a study of marital satisfaction of dual-career couples was to rate the statement im pleased
in the recent census 3 percent of the us population reported being two or more races however the percent varies
68 of online courses taught at community colleges nationwide were taught by full-time faculty to test if 68 also
la leche league international reports that the mean age of weaning a child from breastfeeding is age 4 to 5 worldwide
over the past few decades public health officials have examined the link between weight concerns and teen girls smoking
previously an organization reported that teenagers spent 45 hours per week on average on the phone the organization
a particular brand of tires claims that its deluxe tire averages at least 50000 miles before it needs to be replaced
from generation to generation the mean age when smokers first start to smoke varies however the standard deviation of
the cost of a daily newspaper varies from city to city however the variation among prices remains steady with a
an article in the san jose mercury news stated that students in the california state university system take 45 years on
the mean number of sick days an employee takes per year is believed to be about 10 members of a personnel department do