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In the 2012 Us census, the four most populous states (CA, TX, NY, FL) had 12.1%, 8.1%, 6.3% and 6.1% of the total US population. Suppose a pollster surveys 1000 US citizens and 102 are from CA, 84 from TX, 70 from NY, and 70 from FL. At the probability of Type I error = .05 level, use the x2 test to check whether those 4 states are properly represented in this survey of 1000 people.
Discuss the link between the estimate and the parameter in the context of an hypothesis test. Be sure to reference the appropriate steps of the five step process in your response, based on the steps below:
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In a multiple regression equation two independent variables are considered, and the sample size is 25. The regression coefficients and the standard errors are as follows.
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