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In testing the difference between the means of two independent populations, if neither population is normally distributed, then the sampling distribution of the difference in means will be approximately normal, provided that the sum of the sample sizes obtained from the two populations is at least 30.
12-Lead ECG Machine
A diagnostic tool that measures and records the electrical activity of the heart from twelve different perspectives, widely used to detect and assess cardiac abnormalities.
Hair Clippers
Electric or manual tools used to cut or trim human hair to the desired length.
Betadine Cleanser
A brand of antiseptic solution used for cleaning skin, wounds, and surgical sites to kill germs and reduce the risk of infection.
Chest Discomfort
A feeling of tightness, heaviness, or pain in the chest area, often associated with heart disease but can have other causes.
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