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

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A Consumer Buying Cooperative Tested The Effective Heating Area Of 20 Different Electric Space Heaters With Different Wa 1 (15.48 KiB) Viewed 151 times

A Consumer Buying Cooperative Tested The Effective Heating Area Of 20 Different Electric Space Heaters With Different Wa 2 (18.14 KiB) Viewed 151 times

A Consumer Buying Cooperative Tested The Effective Heating Area Of 20 Different Electric Space Heaters With Different Wa 3 (11.76 KiB) Viewed 151 times

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 8 9 9 10 Wattage 1,750 1,750 1,500 750 1,250 1,000 1,000 2,000 1,250 1,000 1,250 1,750 1,750 2,000 1,500 2,000 1,500 750 750 1,750 Area 124 259 66 267 91 87 123 284 88 236 80 240 272 293 105 200 69 219 219 82 numHBBHB。 11 12 13 14 15 16 17 18 19 20
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 0.025 significance level. (Round intermediate calculations and final answer to 3 decimal places.) Ho:ps 0; Hip> 0 Reject He if t> 2.101
Ho. It is not reasonable to say the population correlation is 19 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.)