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In a study to determine the effect of early child care on infant-mother attachment patterns, 92 infants were classified as either "secure" or "anxious" using an appropriate measurement scale. In addition, the infants were classified according to the average number of hours per week that they spent in child care. The data are presented in the table. High (20-54 hours) Low Moderate (0-3 hours) (4-19 hours) Secure 22 33 Anxious 12 9. 9. (a) Do the data provide sufficient evidence to indicate that there is a difference in attachment pattern for the infants depending on the amount of time spent in child care? Test using a = 0.05. State the null and alternative hypotheses. Ho: Attachment pattern and amount of time spent in child care are dependent. H: Attachment pattern and amount of time spent in child care are independent. Ho: : The number of secure and anxious children are equal. : The number of secure and anxious children are not equal. Ha : Attachment pattern and amount of time spent in child care are independent. Ho : Attachment pattern and amount of time spent in child care are linearly related. На a' : Attachment pattern and amount of time spent in child care are linearly related. Ho: На: : Attachment pattern and amount of time spent in child care are independent. Ho: Attachment pattern and amount of time spent in child care are independent. H: Attachment pattern and amount of time spent in child care are dependent. Find the test statistic. (Round your answer to two decimal places.) x? = Find the rejection region. (Round your answer to two decimal places.) x? >

In a study to determine the effect of early child care on infant-mother attachment patterns, 92 infants were classified as either "secure" or "anxious" using an appropriate measurement scale. In addition, the infants were classified according to the average number of hours per week that they spent in child care. The data are presented in the table. High (20-54 hours) Low Moderate (0-3 hours) (4-19 hours) Secure 22 33 Anxious 12 9. 9. (a) Do the data provide sufficient evidence to indicate that there is a difference in attachment pattern for the infants depending on the amount of time spent in child care? Test using a = 0.05. State the null and alternative hypotheses. Ho: Attachment pattern and amount of time spent in child care are dependent. H: Attachment pattern and amount of time spent in child care are independent. Ho: : The number of secure and anxious children are equal. : The number of secure and anxious children are not equal. Ha : Attachment pattern and amount of time spent in child care are independent. Ho : Attachment pattern and amount of time spent in child care are linearly related. На a' : Attachment pattern and amount of time spent in child care are linearly related. Ho: На: : Attachment pattern and amount of time spent in child care are independent. Ho: Attachment pattern and amount of time spent in child care are independent. H: Attachment pattern and amount of time spent in child care are dependent. Find the test statistic. (Round your answer to two decimal places.) x? = Find the rejection region. (Round your answer to two decimal places.) x? >

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In a study to determine the effect of early child care on infant-mother attachment patterns, 92 infants were classified as either "secure" or "anxious" using an appropriate measurement scale. In addition, the infants were classified according to the average number of hours per week that they spent in child care. The data are presented in the table. High (20-54 hours) Low Moderate (0-3 hours) (4-19 hours) Secure 22 33 Anxious 12 9. 9. (a) Do the data provide sufficient evidence to indicate that there is a difference in attachment pattern for the infants depending on the amount of time spent in child care? Test using a = 0.05. State the null and alternative hypotheses. Ho: Attachment pattern and amount of time spent in child care are dependent. H: Attachment pattern and amount of time spent in child care are independent. Ho: : The number of secure and anxious children are equal. : The number of secure and anxious children are not equal. Ha : Attachment pattern and amount of time spent in child care are independent. Ho : Attachment pattern and amount of time spent in child care are linearly related. На a' : Attachment pattern and amount of time spent in child care are linearly related. Ho: На: : Attachment pattern and amount of time spent in child care are independent. Ho: Attachment pattern and amount of time spent in child care are independent. H: Attachment pattern and amount of time spent in child care are dependent. Find the test statistic. (Round your answer to two decimal places.) x? = Find the rejection region. (Round your answer to two decimal places.) x? >
Transcribed Image Text:In a study to determine the effect of early child care on infant-mother attachment patterns, 92 infants were classified as either "secure" or "anxious" using an appropriate measurement scale. In addition, the infants were classified according to the average number of hours per week that they spent in child care. The data are presented in the table. High (20-54 hours) Low Moderate (0-3 hours) (4-19 hours) Secure 22 33 Anxious 12 9. 9. (a) Do the data provide sufficient evidence to indicate that there is a difference in attachment pattern for the infants depending on the amount of time spent in child care? Test using a = 0.05. State the null and alternative hypotheses. Ho: Attachment pattern and amount of time spent in child care are dependent. H: Attachment pattern and amount of time spent in child care are independent. Ho: : The number of secure and anxious children are equal. : The number of secure and anxious children are not equal. Ha : Attachment pattern and amount of time spent in child care are independent. Ho : Attachment pattern and amount of time spent in child care are linearly related. На a' : Attachment pattern and amount of time spent in child care are linearly related. Ho: На: : Attachment pattern and amount of time spent in child care are independent. Ho: Attachment pattern and amount of time spent in child care are independent. H: Attachment pattern and amount of time spent in child care are dependent. Find the test statistic. (Round your answer to two decimal places.) x? = Find the rejection region. (Round your answer to two decimal places.) x? >
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