1. A. An economist selected a random sample of five firms from a very large industry to study the relationship between total cost and volume of production. The following information was obtained: Firm A B C D E Number of Units Produced 2 4 6 5 3 Total Cost (Thousands of $) 9 12 15 14 10 i). Estimate the slope and the intercept using the formulas. ii). Interpret your coefficient estimates B. Calculate the coefficient of correlation by the formula and interpret its value.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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1. A. An economist selected a random sample of five firms from a very large industry to study the
relationship between total cost and volume of production. The following information was
obtained:
Firm
A
B
с
D
E
Number of Units
Produced
2
4
6
5
3
i). Estimate the slope and the intercept using the formulas.
ii). Interpret your coefficient estimates
Total Cost
(Thousands of $)
9
12
15
14
10
B. Calculate the coefficient of correlation by the formula and interpret its value.
Transcribed Image Text:1. A. An economist selected a random sample of five firms from a very large industry to study the relationship between total cost and volume of production. The following information was obtained: Firm A B с D E Number of Units Produced 2 4 6 5 3 i). Estimate the slope and the intercept using the formulas. ii). Interpret your coefficient estimates Total Cost (Thousands of $) 9 12 15 14 10 B. Calculate the coefficient of correlation by the formula and interpret its value.
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