A consumer buying cooperative tested the effective heating area of 20 different electric space heaters with...

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A consumer buying cooperative tested the effective heating area of 20 different electric space heaters with different wattages. Here are the results. Heater 1 2 3 4 5 6 7 10 11 12 13 14 15 16 17 18 19 20 Wattage 750 750 1,500 750 1,000 1,250 1,000 2,000 1,250 1,500 750 1,750 2,000 1,250 1,750 750 1,250 1,500 2,000 1,000 Area 168 58 56 51 237 105 139 197 80 166 75 292 49 78 269 162 171 147 244 73 Rece a. Compute the correlation between the wattage and heating area. Is there a direct or an indirect relationship? (Round your answer to 4 decimal places.) The correlation of Wattage and Area is The link (relationship) is b. Conduct a test of hypothesis to determine if it is reasonable that the coefficient is greater than zero. Use the 0.050 significance level. (Round intermediate calculations and final answer to 3 decimal places.) Ho: p≤0; H₁: p> 0 Reject He if t>1.734 Ho. It is quite reasonable to say the population correlation is as c. Develop the regression equation for effective heating based on wattage. (Negative value should be indicated by a minus sign. Round your answers to 3 decimal places.) The regression equation is: d. What heating area corresponds with a 1,500-watt heater? (Round your answers to 4 decimal places.) Heating area e. What is the 95% confidence interval of heating the area if the wattage is 1,500? (Round your answers to 4 decimal places.) A consumer buying cooperative tested the effective heating area of 20 different electric space heaters with different wattages. Here are the results. Heater 1 2 3 4 5 6 7 10 11 12 13 14 15 16 17 18 19 20 Wattage 750 750 1,500 750 1,000 1,250 1,000 2,000 1,250 1,500 750 1,750 2,000 1,250 1,750 750 1,250 1,500 2,000 1,000 Area 168 58 56 51 237 105 139 197 80 166 75 292 49 78 269 162 171 147 244 73 Rece a. Compute the correlation between the wattage and heating area. Is there a direct or an indirect relationship? (Round your answer to 4 decimal places.) The correlation of Wattage and Area is The link (relationship) is b. Conduct a test of hypothesis to determine if it is reasonable that the coefficient is greater than zero. Use the 0.050 significance level. (Round intermediate calculations and final answer to 3 decimal places.) Ho: p≤0; H₁: p> 0 Reject He if t>1.734 Ho. It is quite reasonable to say the population correlation is as c. Develop the regression equation for effective heating based on wattage. (Negative value should be indicated by a minus sign. Round your answers to 3 decimal places.) The regression equation is: d. What heating area corresponds with a 1,500-watt heater? (Round your answers to 4 decimal places.) Heating area e. What is the 95% confidence interval of heating the area if the wattage is 1,500? (Round your answers to 4 decimal places.)

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a X 750 750 1500 750 1000 1250 1000 2000 1250 1500 750 1750 2000 1250 1750 750 b 1250 1500 2000 1000 ... View the full answer