Identify whether the sample correlation coefficient r = 0.820 is significant at α = 0.01 for the sample size n = 7 . Identify whether the sample correlation coefficient r = 0.820 is significant at α = 0.01 for the sample size n = 9 .

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Answer 1

Question

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

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Answer 2

Question

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Expert Solution & Answer

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Answer 3

Question

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Expert Solution & Answer

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Answer 4

Question

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Expert Solution & Answer

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Answer 5

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Answer 6

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

Answer 7

Chapter 9.1, Problem 22P

(a)

To determine

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

Answer 8

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

Answer 9

(b)

To determine

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

Answer 10

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Answer 11

(c)

To determine

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

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Answer 15

Ch. 9.1 - Statistical Literacy When drawing a scatter...Ch. 9.1 - Prob. 2P Ch. 9.1 - Prob. 3P Ch. 9.1 - Prob. 4P Ch. 9.1 - Prob. 5P Ch. 9.1 - Prob. 6P Ch. 9.1 - Prob. 7P Ch. 9.1 - Prob. 8P Ch. 9.1 - Prob. 9P Ch. 9.1 - Critical Thinking: Lurking Variables Over the past...

Identify whether the sample correlation coefficient r = 0.820 is significant at α = 0.01 for the sample size n = 7 . Identify whether the sample correlation coefficient r = 0.820 is significant at α = 0.01 for the sample size n = 9 .

Solution Summary: The author identifies the sample correlation coefficient r=0.820 and the table entry value is 0.87.

Concept explainers

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Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.

Want to see the full answer?

Chapter 9 Solutions

Identify whether the sample correlation coefficient r = 0.820 is significant at α = 0.01 for the sample size n = 7 . Identify whether the sample correlation coefficient r = 0.820 is significant at α = 0.01 for the sample size n = 9 .

Solution Summary: The author identifies the sample correlation coefficient r=0.820 and the table entry value is 0.87.

Concept explainers

Videos

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7. Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20. Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

Identify whether r must be larger than 0.90 to be significant. Identify whether r must be larger than 0.70 to be significant. Identify whether r must be larger than 0.50 to be significant. Explain the role of sample size related to significance of r.

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Chapter 9 Solutions

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=7.

Identify whether the sample correlation coefficient r=0.820 is significant at α=0.01 for the sample size n=9.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=20.

Identify whether the sample correlation coefficient r=0.40 is significant at α=0.05 for the sample size n=27.

Identify whether r must be larger than 0.90 to be significant.

Identify whether r must be larger than 0.70 to be significant.

Identify whether r must be larger than 0.50 to be significant.

Explain the role of sample size related to significance of r.