st/H.mivuorg/webapps assesmeranak erau chpplourse as essment id·36261 71&course;
ID: 3320901 • Letter: S
Question
st/H.mivuorg/webapps assesmeranak erau chpplourse as essment id·36261 71&course; d-19143 Ib nent d"-451353 m The weight and price of 48 diamond rings weighing from 0.12 to 0 35 carat (1 carat 02 gram) and priced between $223 and $1086 were taken from an advertisement placed in a Singapore newspaper Assume that these rings can be considered a random sample of rings with diamonds in this range of weight that were available in Singapore on that same day The scatterplot (with residual plot) and corresponding regression analysis of the cost versus the number of carats are shown Put all of your answers in the blank space prouided below. PARTI What is the best estimate of the variability around the regression ine? A. 173 B.31.84 C. 818 D. 1014 E. 0 978 PART which of these statements best ghes a 99% confidence interval for the slope ofthe regression Ine and its interpretation? A. 3721 0 ± 2 014(31 84), te cost per additional carat is S3721, give or take about $64 B. 3721 0 ± 2 0141014), the cost per additional carat is $3721 give or take about S2042. C. 3721 0 ± 2 01461 8); the cost per additional carat is $3721, give or take about $165 D. 3721* 1 96(31 84) the cost per additional casat is $3721, give or take about $62 E. 3721.0 +1 96(1014) the cost per additinal carat is $3721 give or take about $1987 PART Interpret the negative intercept of 259 6 wlhine the contest of the damond ring data Does the negative intercept 200 400 100 Save All Answers Save and SubeExplanation / Answer
I) option B) Se = 31.84 is correct
II) option D) is correct
III)
intercept is value of y when x = 0
no
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