Which of these techniques represents a person's distribution of body fat?
A) Waist-to-hip ratio
B) Skinfold technique
C) Weight charts
D) Water immersion technique
A
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In order to use the independent samples t-test, the population of ______ must be a normal distribution.
A. differential distribution B. t scores C. difference scores D. sample populations
Which of the following influences the rate at which a neuron fires?
A. the number of terminals of nearby interneurons B. the number of postsynaptic receptors on this neuron C. the number of autoreceptors on this neuron D. the relative strength of excitatory and inhibitory inputs it receives
The mean attention span for adults in a certain village is 15 minutes with a standard deviation of 6.4 . What is the probability of randomly selecting a sample of 30 scores from this population that has a mean attention span equal to or greater than 17 minutes?
a. 0.3783 c. 0.0446 b. 0.0436 d. 0.4564
Elisa is often late for work because she needs to check to make certain the gas is shut off on her stove many times before she is comfortable leaving home. Elisa has a(n) __________
a) obsession. b) compulsion. c) perseveration disorder. d) gas phobia.