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A researcher is testing the effect preschool has on the development of young children mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of - are children who spend more time away from their behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at o.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. 38 39 42 43 48 44 38 36 42 37 36 47 48 38 41

A researcher is testing the effect preschool has on the development of young children mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of - are children who spend more time away from their behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at o.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. 38 39 42 43 48 44 38 36 42 37 36 47 48 38 41

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
Section10.3: Measures Of Spread
Problem 1GP
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State the null and alternative hypotheses and the level of significance for the question 

A researcher is testing the effect preschool has on the development of young children - are children who spend more time away from their mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at o.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. 38 39 42 43 48 44 38 36 42 37 36 47 48 38 41
Transcribed Image Text:A researcher is testing the effect preschool has on the development of young children - are children who spend more time away from their mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at o.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. 38 39 42 43 48 44 38 36 42 37 36 47 48 38 41
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