A researcher is interested in whether high school students who play sports have a higher or lower body mass index (BMI) than students in the general population. The researcher is unsure whether playing sports will decrease body mass (due to more calories burned) or increase body mass (due to more muscle mass). He compares their average BMI to that of students in the general population and finds
that zobt = +1.92 . This is a _____ test and the researcher should conclude _____.
a. one-tailed; that students who are athletes have significantly higher BMIs.
b. two-tailed; that students who are athletes have significantly higher BMIs.
c. one-tailed: that students who are athletes do not have significantly higher BMIs.
d. two-tailed: that students who are athletes do not have significantly higher BMIs.
d
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Eric Erikson saw the period of adolescence as a time in which teenagers try out various alternative identities as they attempt to sort through the available options and forge their sense of who they are
Indicate whether the statement is true or false
Chapter 14 discusses the financial status of elderly women. According to this discussion,
a. only about 10% of Canadian women over the age of 65 are in the low-income bracket. b. in the United States, women over the age of 55 have an average annual income that is about 90% of the average annual income that men have. c. Latina and African American women are just as likely as European American women to have a pension plan. d. older women in the United States have lower incomes than older men, but women and men actually have comparable incomes, once you take health-care expenses into account.