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Hypothesis test,Regression,Autocorrelation,Multicollinearity

Construct a 95 per cent confident interval given the information below: A certain brand of fluorescent light tube was advertised as having an average illumination life-span of...
Given the following data from two independent samples from which the population standard deviation is known, conduct a two-tailed hypothesis test to determine if the first sample mean is smaller than the second sample mean, given a 0.10 level of significance...
Conduct a one-tailed hypothesis test given the information below: A test was conducted to determine whether gender of a spokesperson affected the likelihood that consumers would prefer a new product. A survey of consumers at a trade show employing a female spokesperson determined that...
Conduct a two-tailed hypothesis test given the information below: Assuming that the population standard deviations are unknown, but equal for male and female Grade Point Averages (GPAs), use the following sample data to test whether the averages are different at the 0.05 level of significance...
Answer questions (a) through (e) using the following information and output for multiple regression: A real estate investor has devised a model to estimate home prices in a new suburban development. Data for a random sample of 30 homes were gathered on the selling price of the home ($ thousands), the home size (square feet), the lot size (thousands of square feet), and the number of bedrooms. The following multiple regression output was generated...

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