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When we test H0: μ1 − μ2 ≤ 0, HA: μ1 − μ2 > 0, 1 = 15.4,
2 = 14.5, s1 = 2, s2 = 2.28,
n1 = 35, and n2 = 18 at α = .01, can we reject the null hypothesis? (Assume unequal variances.)
Ecological Approach
A perspective in psychology that emphasizes the study of how organisms relate to one another and to their environments.
Teenage Pregnancy
Teenage pregnancy refers to a pregnancy occurring in an individual who is under the age of 20 at the time of giving birth, presenting unique social, economic, and health challenges.
Child Abuse
Any act by a parent, caregiver, or other individual that results in potential or actual harm to a child, whether physically, psychologically, or sexually.
Microsystems
The immediate environments in which people interact face-to-face, such as families, schools, and peer groups, within the broader context of Bronfenbrenner’s ecological systems theory.
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