A soft drink filling machine, when in perfect adjustment, fills the bottles with 12 ounces of soft drink. Any overfilling or underfilling results in the shutdown and readjustment of the machine. To determine whether or not the machine is properly adjusted, the correct set of hypotheses is _____. A) H₀: μ 12 C) H₀: μ ≠ 12 H_a: μ = 12 D) H₀: μ = 12 H_a: μ ≠ 12

Question

A soft drink filling machine, when in perfect adjustment, fills the bottles with 12 ounces of soft drink. Any overfilling or underfilling results in the shutdown and readjustment of the machine. To determine whether or not the machine is properly adjusted, the correct set of hypotheses is _____. A) H₀: μ < 12 H_a: μ ≤ 12 B) H₀: μ ≤ 12 H_a: μ > 12 C) H₀: μ ≠ 12 H_a: μ = 12 D) H₀: μ = 12 H_a: μ ≠ 12

Quizplus · Accepted Answer

The machine is properly adjusted when the mean amount of soft drink dispensed is 12 ounces. So, the null hypothesis should be that the mean amount of soft drink dispensed is 12 ounces. The alternative hypothesis should be that the mean amount of soft drink dispensed is not 12 ounces.

A Soft Drink Filling Machine, When in Perfect Adjustment, Fills