question archive In a study to determine the effect of early child care on infant-mother attachment patterns, 94 infants were classified as either "secure" or "anxious" using an appropriate measurement scale
In a study to determine the effect of early child care on infant-mother attachment patterns, 94 infants were classified as either "secure" or "anxious" using an appropriate measurement scale
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In a study to determine the effect of early child care on infant-mother attachment patterns, 94 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.
Low(0-3 hours) Moderate(4-19 hours) High(20-54 hours)
Secure 26 33 7
Anxious 10 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 ???? = 0.05.
State the null and alternative hypotheses.
H0: Attachment pattern and amount of time spent in child care are independent.
Ha: Attachment pattern and amount of time spent in child care are linearly related.
H0: Attachment pattern and amount of time spent in child care are linearly related.
Ha: Attachment pattern and amount of time spent in child care are independent.
H0: The number of secure and anxious children are equal.
Ha: The number of secure and anxious children are not equal.
H0: Attachment pattern and amount of time spent in child care are independent.
Ha: Attachment pattern and amount of time spent in child care are dependent.
H0: Attachment pattern and amount of time spent in child care are dependent.
Ha: Attachment pattern and amount of time spent in child care are independent.
Find the test statistic. (Round your answer to two decimal places.)
Χ2 = ________
Find the rejection region. (Round your answer to two decimal places.)
Χ2 > _______
