Using conventional probability values, what would it mean if a survey finding that shows that 75% of American college students own a laptop has a 4% margin of error?
A) We are 95% sure that the actual proportion of American college students that own a laptop is 75%.
B) We are 91% sure that the actual proportion of American college students that own a laptop is 75%.
C) We are 95% sure that the actual proportion of American college students that own a laptop is 75%, plus or minus 4%.
D) We are 75% sure that the actual proportion of American college students that own a laptop is 95%.
C
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Approximately what percentage of IQ scores fall between 55 and 145?
a) 50 b) 65 c) 95 d) 99
Information is quickly "dumped" from shortÂterm memory and forever lost unless you silently say the information over and over to yourself through a process known as
a. verbal reorganization. b. chunking. c. maintenance rehearsal. d. implicit priming.