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Use the following data to answer question 8 - 12. A number of studies have claimed evidence that the first-born in a family is, on the whole, more likely to be "successful" than later-borns. A study along this direction compared the IQs of a random sample of 80 first-borns with those of an independent random sample of 105 later-borns. The data are summarized below: Sample size Sample mean Sample SD First-borns 80 112 7.2 Later-borns 105 108 8.0 ...

Use the following data to answer question 8 - 12. A number of studies have claimed evidence that the first-born in a family is, on the whole, more likely to be "successful" than later-borns. A study along this direction compared the IQs of a random sample of 80 first-borns with those of an independent random sample of 105 later-borns. The data are summarized below: Sample size Sample mean Sample SD First-borns 80 112 7.2 Later-borns 105 108 8.0 ...

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Use the following data to answer question 8 - 12. A number of studies have claimed evidence that the first-born in a family is, on the whole, more likely to be "successful" than later-borns. A study along this direction compared the IQs of a random sample of 80 first-borns with those of an independent random sample of 105 later-borns. The data are summarized below: Sample size Sample mean Sample SD First-borns 80 112 7.2 Later-borns 105 108 8.0
Transcribed Image Text:Use the following data to answer question 8 - 12. A number of studies have claimed evidence that the first-born in a family is, on the whole, more likely to be "successful" than later-borns. A study along this direction compared the IQs of a random sample of 80 first-borns with those of an independent random sample of 105 later-borns. The data are summarized below: Sample size Sample mean Sample SD First-borns 80 112 7.2 Later-borns 105 108 8.0
Based on the data from question 8, for testing if first-borns have a larger mean IQ compared to later-borns using t-test, calculate (SE²₁+ SE²₂)² SE ₁ SE 2 7₁-1 7₂-1 the test statistics value and P-value. You can use df= A t_s=3.567, P value is less than 0.0010 B D t_s=3.181, P value is between 0.0005 and 0.005 t_s=3.567, P value is less than 0.0005 t_s=4.000, P value is less than 0.0005 + =177.9307
Transcribed Image Text:Based on the data from question 8, for testing if first-borns have a larger mean IQ compared to later-borns using t-test, calculate (SE²₁+ SE²₂)² SE ₁ SE 2 7₁-1 7₂-1 the test statistics value and P-value. You can use df= A t_s=3.567, P value is less than 0.0010 B D t_s=3.181, P value is between 0.0005 and 0.005 t_s=3.567, P value is less than 0.0005 t_s=4.000, P value is less than 0.0005 + =177.9307
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