01.07.2022 - 07:34

# The total scores on the Medical College Admission Test (MCAT) follow a Normal distribution with mean 24.4 and standard deviation 6.2 . What are the median and the first and third quartiles of the MCA

Question:

The total scores on the Medical College Admission Test (MCAT) follow a Normal distribution with mean 24.4 and standard deviation 6.2 .

What are the median and the first and third quartiles of the MCAT scores?

(Use software to calculate z)

Q1 {eq}(pm 0.001) = {/eq}

Median {eq}(pm 0.001) = {/eq}

Q3 {eq}(pm 0.001) = {/eq}

Suppose the length of human pregnancies from conception to birth varies according to a distribution that is \approx imately Normal with mean 266 days and standard deviation 13 days. 95% of all pregnancies last between….?

Find the proportion of observations ( 0.0001) from a standard Normal distribution that falls in each of the following regions. In each case, sketch a standard Normal curve and shade the area representing the region.

(a){eq}z \leq -2.34: {/eq}

(b){eq}z geq -2.34: {/eq}

(c)z >1.74:

(d)-2.34