A researcher administers a treatment to a sample of participants selected from a population with µ = 80. If a hypothesis test is used to evaluate the effect of the treatment, which combination of factors is most likely to result in rejecting the null hypothesis?
A) ?A sample mean near 80 for a small sample
B) ?A sample mean near 80 for a large sample
C) ?A sample mean much different than 80 for a small sample
D) ?A sample mean much different than 80 for a large sample
D
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Lucy is a hard-working student in her sophomore year at a large university. Her friends can't understand how Lucy eats so much, yet gains no weight. Her weight is normal, she eats meals, and is generally personable
Her friends do find it weird that she always has to go to the bathroom after a meal, but Lucy just says she has weak bladder. What her friends do not know is that Lucy also eats 4,000-6,000 calories in one sitting at least two times a week. After gorging herself, she then vomits all of it back up. She would best be described as suffering from a. diabetes. b. a low blood-sugar level. c. anorexia nervosa. d. bulimia nervosa. e. All of the above are correct.
Which of the following is NOT a risk factor for eating disorders in men?
A) homosexuality B) painting C) childhood obesity D) wrestling