b. Based on the estimated regression​ model, what percentage of the total variation in average monthly sales can be explained by store​ size? ______ ​% ​(Type an integer or decimal rounded to one decimal place as​ needed

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Please see images for question part a. & b. and data table. Thanks! 

part b) is partially cut off and says:

b. Based on the estimated regression​ model, what percentage of the total variation in average monthly sales can be explained by store​ size?
______ ​% ​(Type an integer or decimal rounded to one decimal place as​ needed.)
Store Size (Sq. Ft) Average Monthly Sales
17,270
16,040
17,380
17,400
15,860
20,340
15,390
16,890
11,890
12,370
15,680
12,560
21,810
14,090
16,750
14,880
18.450
18,370
16,740
19,890
17,830
S584,850.00
$536,940.00
S631.287.00
S578,672.00
S558,885.00
S686,888.00
S553,382.00
$585,387.00
S472,888.00
-$519,131.00
S618.203.00
S466,361.00
S732,820.00
S504,285.00
$629,320.00
S600,831.00
S609.228.00
S616,824.00
S686,118.00
S721,823.00
S539,087.00
Transcribed Image Text:Store Size (Sq. Ft) Average Monthly Sales 17,270 16,040 17,380 17,400 15,860 20,340 15,390 16,890 11,890 12,370 15,680 12,560 21,810 14,090 16,750 14,880 18.450 18,370 16,740 19,890 17,830 S584,850.00 $536,940.00 S631.287.00 S578,672.00 S558,885.00 S686,888.00 S553,382.00 $585,387.00 S472,888.00 -$519,131.00 S618.203.00 S466,361.00 S732,820.00 S504,285.00 $629,320.00 S600,831.00 S609.228.00 S616,824.00 S686,118.00 S721,823.00 S539,087.00
A regional retailer would like to determine if the variation in average monthly store sales can, in part, be explained by the size of the store measured in square feet. A
random sample of 21 stores was selected and the store size and average monthly sales were computed. Complete parts a. and b.
Click the icon to view the data table between the store size and average monthly sales.
a. Compute the simple linear regression model using the sample data. Let y be the average monthly store sales and x be the store size in square footage.
(Type integers or decimals rounded to two decimal places as needed.)
Interpret the slope coefficient. Select the correct choice below and fill in the answer box to complete your choice.
(Type an integer or decimal rounded to two decimal places as needed.)
O A. For each additional square foot of store size, the average increase in monthly sales is $
O B. For each additional dollar of monthly sales, the average increase in stores size is
square feet.
Interpret the intercept coefficient. Select the correct choice below and fill in the answer box to complete your choice.
(Type an integer or decimal rounded to two decimal places as needed.)
O A. The size of a store with average monthly sales of $0 is
square feet.
O B. The average monthly sales of a store with 0 square feet is $.
O C. Astore with no floor space cannot occur, therefore, the y intercept does not have a meaningful interpretation.
b. Based on the estimated regression model, what percentage of the total variation in average monthly sales can be explained by store size?
J Tunn nintennr ar Anrimnlmundedin nnn dnrimal nlnnn an nnndnd
Transcribed Image Text:A regional retailer would like to determine if the variation in average monthly store sales can, in part, be explained by the size of the store measured in square feet. A random sample of 21 stores was selected and the store size and average monthly sales were computed. Complete parts a. and b. Click the icon to view the data table between the store size and average monthly sales. a. Compute the simple linear regression model using the sample data. Let y be the average monthly store sales and x be the store size in square footage. (Type integers or decimals rounded to two decimal places as needed.) Interpret the slope coefficient. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or decimal rounded to two decimal places as needed.) O A. For each additional square foot of store size, the average increase in monthly sales is $ O B. For each additional dollar of monthly sales, the average increase in stores size is square feet. Interpret the intercept coefficient. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or decimal rounded to two decimal places as needed.) O A. The size of a store with average monthly sales of $0 is square feet. O B. The average monthly sales of a store with 0 square feet is $. O C. Astore with no floor space cannot occur, therefore, the y intercept does not have a meaningful interpretation. b. Based on the estimated regression model, what percentage of the total variation in average monthly sales can be explained by store size? J Tunn nintennr ar Anrimnlmundedin nnn dnrimal nlnnn an nnndnd
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