LabVIIDocument - Word Singleton, Rose File Home Insert Design Layout References Mailings Review View Help Tell me what you want to do Share ✗Cut Copy Times New Ro▾12 Α΄ Α Aa▾ AaBbCc AaBbCc AaBbC AaBbCc AaB AaBbcct AaBbCcl AaBbCcl Find ▾ ab ac Replace Paste BIU abc X₂ x² A T Normal No Spac... Heading 1 Heading 2 Title Subtitle Subtle Em... Emphasis Format Painter Select Clipboard Font Paragraph Styles Editing Page 4 of 10 1235 words о Type here to search 近 Bl. Non-Parametric Test (The Sign Test) Researchers wished to know if instruction in personal care and grooming would improve the appearance of mentally retarded girls. In a school for the mentally retarded, 10 girls selected at random received special instruction in personal care and grooming. Two weeks after completion of the course of instruction the girls were interviewed by a nurse and a social worker who assigned each girl a score based on her general appearance. The investigators believed that the scores achieved the level of an ordinal scale. They felt that although a score of, say, 8 represented a better appearance than a score of 6, they are unwilling to say that the difference between scores of 6 and 8 was equal to the difference between say, score of 8 and 10; or that the difference between scores of 6 and 8 represented twice as much improvement as the difference between scores of 5 and 6. The scores are shown in Table 1 below. We wish to know if we can conclude that the median score of the population from which we assume this sample to have been drawn is different from 5 (Wayne Daniel 2009). Table: Personal Care and Grooming Score Girl Score 1 4 2 5 3 8 4 8 5 9 6 6 7 10 8 7 9 6 10 6 B1.1 Set up hypotheses for the above problem B1.2: What is the appropriate test statistic to use and why? B1.3 Record your Sign statistics and their corresponding p-value. What are your conclusions? Activate Windows Go to Settings to activate Windows. 72°F Mostly + 80% 6:55 PM 3/27/2024

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter48: Applications Of Formulas To Spur Gears
Section: Chapter Questions
Problem 23A
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Bl. Non-Parametric Test (The Sign Test)
Researchers wished to know if instruction in personal care and grooming would improve the
appearance of mentally retarded girls. In a school for the mentally retarded, 10 girls selected at
random received special instruction in personal care and grooming. Two weeks after completion
of the course of instruction the girls were interviewed by a nurse and a social worker who
assigned each girl a score based on her general appearance. The investigators believed that the
scores achieved the level of an ordinal scale. They felt that although a score of, say, 8
represented a better appearance than a score of 6, they are unwilling to say that the difference
between scores of 6 and 8 was equal to the difference between say, score of 8 and 10; or that the
difference between scores of 6 and 8 represented twice as much improvement as the difference
between scores of 5 and 6. The scores are shown in Table 1 below. We wish to know if we can
conclude that the median score of the population from which we assume this sample to have
been drawn is different from 5 (Wayne Daniel 2009).
Table: Personal Care and Grooming Score
Girl
Score
1
4
2
5
3
8
4
8
5
9
6
6
7
10
8
7
9
6
10
6
B1.1 Set up hypotheses for the above problem
B1.2: What is the appropriate test statistic to use and why?
B1.3 Record your Sign statistics and their corresponding p-value. What are your conclusions?
Activate Windows
Go to Settings to activate Windows.
72°F Mostly
+ 80%
6:55 PM
3/27/2024
Transcribed Image Text:LabVIIDocument - Word Singleton, Rose File Home Insert Design Layout References Mailings Review View Help Tell me what you want to do Share ✗Cut Copy Times New Ro▾12 Α΄ Α Aa▾ AaBbCc AaBbCc AaBbC AaBbCc AaB AaBbcct AaBbCcl AaBbCcl Find ▾ ab ac Replace Paste BIU abc X₂ x² A T Normal No Spac... Heading 1 Heading 2 Title Subtitle Subtle Em... Emphasis Format Painter Select Clipboard Font Paragraph Styles Editing Page 4 of 10 1235 words о Type here to search 近 Bl. Non-Parametric Test (The Sign Test) Researchers wished to know if instruction in personal care and grooming would improve the appearance of mentally retarded girls. In a school for the mentally retarded, 10 girls selected at random received special instruction in personal care and grooming. Two weeks after completion of the course of instruction the girls were interviewed by a nurse and a social worker who assigned each girl a score based on her general appearance. The investigators believed that the scores achieved the level of an ordinal scale. They felt that although a score of, say, 8 represented a better appearance than a score of 6, they are unwilling to say that the difference between scores of 6 and 8 was equal to the difference between say, score of 8 and 10; or that the difference between scores of 6 and 8 represented twice as much improvement as the difference between scores of 5 and 6. The scores are shown in Table 1 below. We wish to know if we can conclude that the median score of the population from which we assume this sample to have been drawn is different from 5 (Wayne Daniel 2009). Table: Personal Care and Grooming Score Girl Score 1 4 2 5 3 8 4 8 5 9 6 6 7 10 8 7 9 6 10 6 B1.1 Set up hypotheses for the above problem B1.2: What is the appropriate test statistic to use and why? B1.3 Record your Sign statistics and their corresponding p-value. What are your conclusions? Activate Windows Go to Settings to activate Windows. 72°F Mostly + 80% 6:55 PM 3/27/2024
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