Question

Notation. The population of distances that adult males can reach forward is normally distributed with a mean of 88.0 cm and a standard deviation of 4.4 cm (from the Federal Aviation Administration). If samples of 36 adult males are randomly selected, what do fir and σι represent, and what are their values?

Answer 1

X = Population of distances that males can reach forward.

X ~ N(88, 4.4)

We need to tell that what does represents$\mu _{x}\; and \; \sigma_{x}$. and what are their values?

$\mu _{x}$ represents the population mean for random variable x and sigma ( x ) represents the population standard deviation.

From the given information, we conclude that the population mean and standard deviation ( $\mu _{x}\; and \; \sigma_{x}$ ) is equal to 88 cm and 4.4 cm respectively.