MATH SOLVE

5 months ago

Q:
# for a group experiment, your science class measured the fine-particulate concentration in the air at random places around campus, and estimated a sample average of 32 micrograms per cubic meter, if 225 readings were take, and the standard deviation of the sample measurement was 3 you are 99.7% confidence that actual concentration of fine particulates at the school is?

Accepted Solution

A:

its 31.4 - 32.6 this for apex