Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

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Answer 1

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Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

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The following is a list of questions answered correctly on an exam. Calculate the Measures of Central Tendency from the ungrouped data list. NUMBER OF QUESTIONS ANSWERED CORRECTLY ON AN APTITUDE EXAM 112 72 69 97 107 73 92 76 86 73 126 128 118 127 124 82 104 132 134 83 92 108 96 100 92 115 76 91 102 81 95 141 81 80 106 84 119 113 98 75 68 98 115 106 95 100 85 94 106 119

The following ordered data list shows the data speeds for cell phones used by a telephone company at an airport: A. Calculate the Measures of Central Tendency using the table in point B. B. Are there differences in the measurements obtained in A and C? Why (give at least one justified reason)? 0.8 1.4 1.8 1.9 3.2 3.6 4.5 4.5 4.6 6.2 6.5 7.7 7.9 9.9 10.2 10.3 10.9 11.1 11.1 11.6 11.8 12.0 13.1 13.5 13.7 14.1 14.2 14.7 15.0 15.1 15.5 15.8 16.0 17.5 18.2 20.2 21.1 21.5 22.2 22.4 23.1 24.5 25.7 28.5 34.6 38.5 43.0 55.6 71.3 77.8

Answer 2

Question

Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

Expert Solution & Answer

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Answer 3

Question

Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

Expert Solution & Answer

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Answer 4

Question

Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

Expert Solution & Answer

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Answer 5

Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

Answer 6

Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

Answer 7

Chapter 6, Problem 2PP

(a)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

Answer 8

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

Answer 9

(b)

To determine

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

Answer 10

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

Answer 11

(c)

To determine

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 6 - Prob. 1.1HD Ch. 6 - (a) What is a Type I error? (b) Why is it...Ch. 6 - (a) What is a Type II error? (b) Why is it...Ch. 6 - If you set a lenient alpha level (say .25), what...Ch. 6 - If you set an extreme alpha level (say .001), what...Ch. 6 - What does effect size add to just knowing whether...Ch. 6 - Why do researchers usually use a standardized...Ch. 6 - Write the formula for effect size in the situation...Ch. 6 - On a standard test, the population is known to...Ch. 6 - (a) Why are effect size conventions useful? (b)...

Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

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Mention four possible correct and incorrect decisions for the study ‘whether increasing the amount of recess time improves schoolchildren’s in class behaviour’.

Mention four possible correct and incorrect decisions for the study ‘whether color-blind individuals can distinguish grey shades better than the population at large’.

Mention four possible correct and incorrect decisions for the study of ‘comparing individuals who have ever been in psychotherapy to the general public to see if they are more tolerant of other people’s upsets than in the general population’.

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Chapter 6 Solutions