Author Question: Identify the variable of interest in the study.The highway department paves one section of an ... (Read 28 times)

RODY.ELKHALIL · **on:** Jan 18, 2020

Question 1

Identify the variable of interest in the study.

A quality control specialist compares the output from a machine with a new lubricant to the output of machines with the old lubricant.
◦ Whether the new lubricant is more cost-effective than the old lubricant
◦ The number of machines tested
◦ The difference between the measured outputs of a machine using each type of lubricant

Question 2

Identify the variable of interest in the study.

The highway department paves one section of an Interstate with Type A concrete and an adjoining section with Type B concrete and observes how long it takes until cracks appear in each.
◦ The difference between cost of the two types of concrete
◦ The difference between the measured length of time it takes for cracks to appear in each type of concrete
◦ Whether Type A concrete provides better traction than Type B concrete

k.lashomb · **Reply #1 on:** Jan 18, 2020

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 56% of students answer this correctly