If Two Random Samples of Size 36 Each Are Selected $\bar { X } _ { 1 } - \bar { X } _ { 2 }$

question 5

True/False

If two random samples of size 36 each are selected independently from two populations with variances 25 and 16, then the standard error of the sampling distribution of the sample mean difference, $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ , is 5-4 = 1.

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Definitions:

Acute Laryngotracheobronchitis

A serious inflammation of the larynx, trachea, and bronchi primarily affecting children and leading to airway obstruction.

Respiratory Efforts

The work the body exerts to breathe, including the use of muscles in the chest and diaphragm to inhale and exhale air.

Mother's Presence

The physical or emotional availability and support of a mother, which can significantly impact a child's development and well-being.

Nasopharyngitis

Inflammation of the nasal passages and pharynx, commonly known as the common cold.