An experiment was run to determine whether four specific firingtemperatures affect the density of a certain type of brick. Acompletely randomize experiment led to the following data :

Temperature Density
100 21.8 21.9 21.7 21.6 21.7
125 21.7 21.4 21.5 21.4
150 21.9 21.8 21.8 21.6 21.5
175 21.9 21.7 21.8 21.4
Does the firing temperature affect the density of the bricks ?Use α = 0.05

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?

The focus of a parabola is (-4,-5) and its directrix is y=-1 find the equation