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American Black Bears The Web site that contained the

Chapter 7, Problem 36AYU

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QUESTION:

Problem 36AYU

American Black Bears The Web site that contained the American black bear data listed in Problem 28 actually had a bear whose height is 141.0 cm and weight is 100 kg incorrectly listed as 41.0 cm tall.

(a)Redraw the scatter diagram with the incorrect entry.

(b)Recompute the linear correlation coefficient using the data with the incorrect entry.

(c)Explain how the scatter diagram can be used to identify incorrectly entered data values. Explain how the incorrectly entered data value affects the correlation coefficient.

Questions & Answers

QUESTION:

Problem 36AYU

American Black Bears The Web site that contained the American black bear data listed in Problem 28 actually had a bear whose height is 141.0 cm and weight is 100 kg incorrectly listed as 41.0 cm tall.

(a)Redraw the scatter diagram with the incorrect entry.

(b)Recompute the linear correlation coefficient using the data with the incorrect entry.

(c)Explain how the scatter diagram can be used to identify incorrectly entered data values. Explain how the incorrectly entered data value affects the correlation coefficient.

ANSWER:

Answer :

Step 1 :

Given, The Web site that contained the American black bear data listed in Problem 28 actually had a bear whose height is 141.0 cm and weight is 100 kg incorrectly listed as 41.0 cm tall

Total Length (cm)

Weight (kg)

139

110

138

60

139

90

120.5

60

149

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