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Suppose new legislation on taxation reform has been proposed in Australia and that the Prime Minister recently gave a televised speech on the issue. Prior to the speech, 38% of Australians supported the new legislation. After the speech, out of a sample of 8000 people, 3130 supported the new legislation.
a) Has the Prime Minister's speech increased support for the new legislation? Test with a significance level of 1%. Show all steps, including clearly stating the hypotheses, any assumptions, calculations, conclusion and reasoning.
Compute the expected value and variance for the number of bedrooms in owneroccupied houses.
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According to a recent poll by the Pew Internet Project, girls between the ages of 14 and 17 send an average of 187 text messages each day.
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