A statistical hypothesis that contains the ______ symbol may be defined as ______.

a. ?; one-tailed
b. <; non-directional
c. <; one-tailed
d. ?; directional


c. <; one-tailed

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How many children are reported to live in single-parent families?

A. More than one-quarter of all children B. More than one-third of all children C. 23,000 children D. 500,000 children

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Which of the following would be considered a good tactic for writing an end-of-the-term report for your job?

a. Write an analogous report first. b. Work backward at this task. c. Break the task up into its component parts. d. Write a shorter version of the report first.

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Which food group resides at the top of the food pyramid?

a. Fruits b. Fats, oils, and sweets c. Grains d. Dairy products

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The research reported on "massed" and "distributed" practice suggests that activities

that occur during waking a. require more attention b. lead to "decay" c. enhance memory d. interfere with memory

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