This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A quality inspector tested 33 copiers in an attempt to estimate the average failure rate of the ... (Read 117 times)

stephzh

  • Hero Member
  • *****
  • Posts: 556
on: Jun 24, 2018
A quality inspector tested 33 copiers in an attempt to estimate the average failure rate of the copier model. His study indicated that the number of failures decreased from two years ago, indicating an increase in the reliability of the copiers. Describe the variable of interest to the inspector.
 
  What will be an ideal response?

Question 2

Parking at a university has become a problem. University administrators are interested in determining the average time it takes a student to find a parking spot. An administrator inconspicuously followed 110 students and recorded how long it took each of them to find a parking spot. Identify the population, sample, and variable of interest to the administrators.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tabitha_2016

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 24, 2018
Answer to Question 1

The variable of interest to the researcher is the failure rate of the copiers.

Answer to Question 2

The population of interest are all students at the university who park. The sample is the parking times of the 110 students that were collected by the university administrator. The variable of interest to the administrators is the parking time variable.


stephzh

  • Member
  • Posts: 556
Reply 2 on: Jun 24, 2018
:D TYSM

ecabral0

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
Drugs for Early and Moderate Heart Failure Drugs for Early and Moderate Heart Failure
An ECT sensor being tested using a digital meter set to DC volts. A chart showing the voltage ... An ECT sensor being tested using a digital meter set to DC volts. A chart showing the voltage ...
Radiation Quantity and Quality Radiation Quantity and Quality
Static Stability & Environmental Lapse Rate Static Stability & Environmental Lapse Rate
Average Number of Days per Year with Thunderstorms Average Number of Days per Year with Thunderstorms
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library