10. A consumer buying cooperative tested the effectiveheating area of 20 different electric space heaters with differentwattages. Here are the results.
10 A Consumer Buying Cooperative Tested The Effective Heating Area Of 20 Different Electric Space Heaters With Differen 1 (18.16 KiB) Viewed 46 times
10 A Consumer Buying Cooperative Tested The Effective Heating Area Of 20 Different Electric Space Heaters With Differen 2 (11.36 KiB) Viewed 46 times
10 A Consumer Buying Cooperative Tested The Effective Heating Area Of 20 Different Electric Space Heaters With Differen 3 (11.04 KiB) Viewed 46 times
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 t=
Ho. It is not reasonable to say the population correlation is 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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