Answer:
z-score
Step-by-step explanation:
Since we are given the mean and standard deviation of a national test (whole population) it is fair to assume a large population size, and the use of the z-score would be more appropriate, since the z-score is used for the standardization of population data, while the t-score is recommended for samples or small populations.
Hey there!
Let's write this as an equation, with n representing the unknown number.
0.5n-35=14
First, we add 35 to both sides.
0.5n=49
We divide both sides by 0.5.
n=108
Therefore, your number is 108
I hope this helps!
(a) 0.105 miles per minute
(b) $4.4 an hour
