If the Underlying Populations Cannot Be Assumed to Be Normal

question 33

Multiple Choice

If the underlying populations cannot be assumed to be normal, then by the central limit theorem, the sampling distribution of ₁ - ₂ is approximately normal only if both sample sizes are sufficiently large-that is, when ________.

• A) n₁ + n₂ = 30
• B) n₁ + n₂ ≥ 30
• C) n₁ = 30 and n₂ = 30
• D) n₁ ≥ 30 and n₂ ≥ 30

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Definitions:

Myxedema

A condition resulting from the hypofunction of the thyroid gland.

Thyroid Hormone

Hormones produced by the thyroid gland, important for regulation of metabolism, energy generation, and neuromuscular function.

Pituitary Hormone

Hormones secreted by the pituitary gland, which is located at the base of the brain and plays a crucial role in regulating growth and metabolism, among other functions.

Testosterone

A male hormone secreted by the testes that causes and maintains male secondary sex characteristics.