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

Author Question: Explain the difference between the population standard deviation and the sample standard deviation ... (Read 207 times)

V@ndy87

  • Hero Member
  • *****
  • Posts: 571
on: Jul 24, 2018
Explain the difference between the population standard deviation  and the sample standard deviation s.

Question 2

Suppose that amount spent by students on textbooks this semester has approximately a bell-shaped distribution. The mean amount spent was 300 and the standard deviation is 100 . A student spent 500 on textbooks. What percentile does their value correspond to?
 a. 97.5th percentile
  b. 95th percentile
  c. 5th percentile
  d. 2.5th percentile


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rachel

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 24, 2018
Answer to Question 1

The population standard deviation is a measure of spread in the population and is a parameter (fixed value, usually unknown). The sample standard deviation is an estimate of the population standard deviation and is a statistic.

Answer to Question 2

A


V@ndy87

  • Member
  • Posts: 571
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

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?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Area of Manatee Population Area of Manatee Population
population population
Sample inventory order form. Sample inventory order form.
Resting Membrane Potential: Voltage Difference Resting Membrane Potential: Voltage Difference
Standard Electrode Potentials at 25 Degrees Standard Electrode Potentials at 25 Degrees
Sample hypnograms of an infant at ages 3, 12, and 24 months Sample hypnograms of an infant at ages 3, 12, and 24 months
Video: Types of disease resistance: innate defenses & immunity

For a complete list of videos, visit our video library