Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages ineach textbook and its cost. The bivariate data are shown below:Number of Pages (x)Cost(y)67781.4754274.6239055.9792104.1238749.5727939.6971.1447456371.93880108.8A student calculates a linear model. (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 977Cost $(Please show your answer to 2 decimal places.)

Question
Asked Oct 8, 2019
Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in
each textbook and its cost. The bivariate data are shown below:
Number of Pages (x)
Cost(y)
677
81.47
542
74.62
390
55.9
792
104.12
387
49.57
279
39.69
71.14
474
563
71.93
880
108.8
A student calculates a linear model
. (Please show your answers to two decimal places)
Use the model to estimate the cost when number of pages is 977
Cost $
(Please show your answer to 2 decimal places.)
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Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (x) Cost(y) 677 81.47 542 74.62 390 55.9 792 104.12 387 49.57 279 39.69 71.14 474 563 71.93 880 108.8 A student calculates a linear model . (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 977 Cost $ (Please show your answer to 2 decimal places.)

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Expert Answer

Step 1

The linear model obtained using scatter diagram is given below:

The line that best fits the data is least-squares regression line.

The procedure to draw scatterplot using EXCEL is as follows.

  • Select the data Number of Pages (x) and Cost(y).
  • Go to Insert.
  • Select Scatter under Charts.
  • Right click on the obtained chart, check linear, Display Equation on chart.

The scatter diagram for the data that is obtained using EXCEL is as follows:

Scatter plot for Cost (y) vs number of pages (x)
120
y 0.1146x+9.55
100
60
Cost (y)
40
Linear (Cost (y)
20
0
200
400
600
800
1000
Number of pages (x)
80
(A) as0
help_outline

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Scatter plot for Cost (y) vs number of pages (x) 120 y 0.1146x+9.55 100 60 Cost (y) 40 Linear (Cost (y) 20 0 200 400 600 800 1000 Number of pages (x) 80 (A) as0

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Step 2

From the scatter diagram, the linear model i...

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