The average daily cost of living in dollars (x) and the average wage in dollars (y)...

 

Transcribed Image Text:

The average daily cost of living in dollars (x) and the average wage in dollars (y) in 12 regions of a country are shown in the following table. x 77 84 88 77 89 105 69 85 78 91 78 110 y 134 149 136 157 164 194 137 159 156 167 158 172 Assume that the averages are jointly normally distributed. Use the z-values rounded to two decimal places to obtain the answers. (a) Find a regression line relating the wage to the cost of living. Round your answer to one decimal place (e.g. 98.7). Bo 11 Round your answer to two decimal places (e.g. 98.76). B₁ = (b) Test for the significance of regression using a = 0.01. hypothesis that ₁ = 0. (c) Estimate the correlation coefficient. Round your answer to three decimal places (e.g. 98.765). r = i (d) Test the hypothesis that p = 0, using a = 0.01. hypothesis that p=0. (e) Test the hypothesis that p = 0.9. using a = 0.1. hypothesis that p = 0.9. (f) Construct a 99% confidence interval for the correlation coefficient. Round your answers to three decimal places (e.g. 98.765). SPS i The average daily cost of living in dollars (x) and the average wage in dollars (y) in 12 regions of a country are shown in the following table. x 77 84 88 77 89 105 69 85 78 91 78 110 y 134 149 136 157 164 194 137 159 156 167 158 172 Assume that the averages are jointly normally distributed. Use the z-values rounded to two decimal places to obtain the answers. (a) Find a regression line relating the wage to the cost of living. Round your answer to one decimal place (e.g. 98.7). Bo 11 Round your answer to two decimal places (e.g. 98.76). B₁ = (b) Test for the significance of regression using a = 0.01. hypothesis that ₁ = 0. (c) Estimate the correlation coefficient. Round your answer to three decimal places (e.g. 98.765). r = i (d) Test the hypothesis that p = 0, using a = 0.01. hypothesis that p=0. (e) Test the hypothesis that p = 0.9. using a = 0.1. hypothesis that p = 0.9. (f) Construct a 99% confidence interval for the correlation coefficient. Round your answers to three decimal places (e.g. 98.765). SPS i

Answer rating: 100% (QA)

Solution Let the initial pressure volume and temperature ... View the full answer