More UV-A Radiation Reaches the Earth's Surface Than Either UV-B

question 13

True/False

More UV-A radiation reaches the Earth's surface than either UV-B or UV-C.

---

Definitions:

Z Statistic

A type of standard score that indicates how many standard deviations an element is from the mean of its population.

Normal Distribution

A bell-shaped frequency distribution curve that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

One-tailed Test

A statistical hypothesis test in which the alternative hypothesis specifies a direction of the effect.

One-tailed Hypothesis Test

A statistical test in which the region of rejection is on only one side of the sampling distribution, used when a specific direction for the data is predicted.