The data table found below contains the listed prices and weights of the diamonds in 20 rings offered for sale in a news
Posted: Wed May 11, 2022 2:42 pm
The data table found below contains the listed prices and
weights of the diamonds in
20 rings offered for sale in a newspaper in a foreign city. The
prices are in local dollars with the weights in carats. Complete
parts​ below.
all of the following are correct answers above, besides
(c)...Please just solve for (c)
Units in the drop down select box are:
units
carat per dollars
dollars
carats
dollars per carat
Data Table Weight (carats) 0.27 0.26 0.24 0.12 0.20 0.34 0.19 0.28 0.26 0.22 0.25 0.11 0.24 0.39 0.20 0.23 0.39 0.11 0.22 0.11 Price (dollars) 742 683 653 141 523 1,015 400 742 710 527 662 201 596 1,241 510 575 1,158 117 551 119
(a) Scatterplot the listed prices of the rings on the weights of the rings. Does the trend in the average price seem linear? Which scatterplot below shows the listed prices of the rings on the weights of the rings? OA OB OD. Q Q a 0.5 1400 1400- 0.5- Price (dollars) TUM IX! Price (dollars) Weight(carats) 1400 Price (dollars) 01- 0 0.5 Weight (carats) 0- 0.5 Weight (carats) 1400 Price (dollars) Does there seem to be a linear trend? O A. Yes, because the scatterplot does not show any obvious pattern. OB. No, because the scatterplot shows an obvious curved line. C. Yes, because the scatterplot shows an approximate linear pattern. OD. No, because the scatterplot does not show any obvious pattern. (b) Estimate the linear equation using least squares. Interpret the fitted intercept and slope. Be sure to include their units. Note if either estimate represents a large extrapolation and is consequently not reliable. Complete the equation for the fitted line below. Estimated Price (local dollars) = - 281.69 + 3779.65 Weight (carats) (Round to two decimal places as needed.) Which statement below best interprets the intercept? O A. The intercept is a unitless constant necessary to relate weight and price. OB. The intercept is the weight in carats of a ring with a price of dollars. O C. The intercept is the price in dollars of a ring with a diamond weighing 0 carats. D. The intercept is a large extrapolation and is consequently not reliable.
Which statement below best interprets the slope? a A. The slope is a large extrapolation and is consequently not reliable. B. The slope is the average change in the weight in carats for each 1-dollar increase in price. O C. The slope is a unitless constant necessary to relate weight and price. D. The slope is the average change in the price in dollars for each 1-carat increase in weight. (c) Interpret the summary values and se associated with the fitted equation. Attach units to these summary statistics as appropriate. 2= (no units) se dollars (Round to three decimal places as needed.)
weights of the diamonds in
20 rings offered for sale in a newspaper in a foreign city. The
prices are in local dollars with the weights in carats. Complete
parts​ below.
- The Data Table Found Below Contains The Listed Prices And Weights Of The Diamonds In 20 Rings Offered For Sale In A News 1 (12.65 KiB) Viewed 26 times
- The Data Table Found Below Contains The Listed Prices And Weights Of The Diamonds In 20 Rings Offered For Sale In A News 2 (17.45 KiB) Viewed 26 times
(c)...Please just solve for (c)
Units in the drop down select box are:
units
carat per dollars
dollars
carats
dollars per carat
Data Table Weight (carats) 0.27 0.26 0.24 0.12 0.20 0.34 0.19 0.28 0.26 0.22 0.25 0.11 0.24 0.39 0.20 0.23 0.39 0.11 0.22 0.11 Price (dollars) 742 683 653 141 523 1,015 400 742 710 527 662 201 596 1,241 510 575 1,158 117 551 119
(a) Scatterplot the listed prices of the rings on the weights of the rings. Does the trend in the average price seem linear? Which scatterplot below shows the listed prices of the rings on the weights of the rings? OA OB OD. Q Q a 0.5 1400 1400- 0.5- Price (dollars) TUM IX! Price (dollars) Weight(carats) 1400 Price (dollars) 01- 0 0.5 Weight (carats) 0- 0.5 Weight (carats) 1400 Price (dollars) Does there seem to be a linear trend? O A. Yes, because the scatterplot does not show any obvious pattern. OB. No, because the scatterplot shows an obvious curved line. C. Yes, because the scatterplot shows an approximate linear pattern. OD. No, because the scatterplot does not show any obvious pattern. (b) Estimate the linear equation using least squares. Interpret the fitted intercept and slope. Be sure to include their units. Note if either estimate represents a large extrapolation and is consequently not reliable. Complete the equation for the fitted line below. Estimated Price (local dollars) = - 281.69 + 3779.65 Weight (carats) (Round to two decimal places as needed.) Which statement below best interprets the intercept? O A. The intercept is a unitless constant necessary to relate weight and price. OB. The intercept is the weight in carats of a ring with a price of dollars. O C. The intercept is the price in dollars of a ring with a diamond weighing 0 carats. D. The intercept is a large extrapolation and is consequently not reliable.
Which statement below best interprets the slope? a A. The slope is a large extrapolation and is consequently not reliable. B. The slope is the average change in the weight in carats for each 1-dollar increase in price. O C. The slope is a unitless constant necessary to relate weight and price. D. The slope is the average change in the price in dollars for each 1-carat increase in weight. (c) Interpret the summary values and se associated with the fitted equation. Attach units to these summary statistics as appropriate. 2= (no units) se dollars (Round to three decimal places as needed.)