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An art gallery asked people whether they preferred paintings of winter mountains or lakes at sunset. 78% of those surveyed said they preferred the
An art gallery asked people whether they preferred paintings of winter mountains or lakes at sunset. 78% of those surveyed said they preferred the sunset paintings. The margin of error is 7%, 19 times out of 20. a) Explain what the last sentence means. (2 marks) b) Can we say with certainty that the most popular sort of painting is a painting of a sunset? Explain. (2 marks)
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a The statement the margin of error is 7 19 times out of 20 means that if th...
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Introductory Statistics Exploring The World Through Data
Authors: Robert Gould, Colleen Ryan
2nd Edition
9780321978509, 321978277, 321978501, 978-0321978271
