Describe the error in solving the equation.
-27 - y) + 4 =-4
-14 - 2y + 4 = -4
-10 – 2y = -4
-2y = 6
y=-3

multiple choice

- 2 should have only been multiplied by 7

the -2 was not distributed properly. -2 should have been multiplied by 7 and -y, which is -14 + 2y.

- 10 should have been added to both sides of the equation

the quotient of 6 and -2 is 3. not-3.

find the correct solution to the equation.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables