1123 .I 9? D' 6 Lesson 3 WileyPLUS 70f1'l -/3 55 View Policies Current Attempt in Progress Light Roast or Dark Roast for Your Coffee? A somewhat surprising fact about coffee is that the longer it is roasted, the less caffeine it has. Thus an "extra bold" dark roast coffee actually has less caffeine than a light roast coffee. What is the explanatory variable and what is the response variable? The roasting time is the l c variable. J The amount c explanatory variable. response Do the two variables have a negative association or a positive association? A V @Textbook and Media 8 education.wi|ey.com 1:24 Lesson 3 WileyPLUS 9 of 11 > - / 10 . . . Part 1 (a) What weight does the line predict for a person who is 5 feet tall (60 inches)? Round your answer to one decimal place. Weight = pounds What weight is predicted for someone 6 feet tall (72 inches)? Round your answer to two decimal places. Weight = pounds AA education.wiley.com C V1:23 - Lesson 3 WileyPLUS 9 of 11 -/3 ;= View Policies Current Attempt in Progress Light Roast or Dark Roast for Your Coffee? A somewhat surprising fact about coffee is that the longer it is roasted, the less caffeine it has. Thus an "extra bold" dark roast coffee actually has less caffeine than a light roast coffee. What is the explanatory variable and what is the response variable? (> The roasting time is the variable. (> The amount of caffeine is the variable. Do the two variables have a negative association or a positive association? A V @Textbook and Media 8 education.wi|ey.com 1:24 - Lesson 3 WileyPLUS 9 of 11 -/10 ;= (d) What weight does the regression line predict for a baby who is 20 inches long? Round your answer to one decimal place. Weight = pounds Why is it not appropriate to use the regression line in this case? It is because i) \\/ babies are not 20 inches long we are extrapolating too far we are using the wer wrong units 3 education.wi|ey.com 1:23 - Lesson 3 WileyPLUS 8 of 11 -/10 E Save for Later Attempts: unlimited Part 2 (b) What is the slope of the line? Round your answer to two decimal places. Slope = Interpret it in context. The slope gives 65 AA 9 education.wiley.com C); ml 1:23 - Lesson 3 WileyPLUS 8 of 11