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

Author Question: The standard deviation of a sample of 100 observations is 64 . The variance of the sample is which ... (Read 165 times)

ashley

  • Hero Member
  • *****
  • Posts: 584
on: Jun 24, 2018
The standard deviation of a sample of 100 observations is 64 . The variance of the sample is which of the following?
 a. 8
  b. 10
  c. 6,400
  d. 4,096

Question 2

The following random sample from a population whose values were normally distributed was collected. 10 12 18 16 The 80 confidence interval for  is
 a. 12.054 to 15.946.
   b. 10.108 to 17.892.
   c. 10.321 to 17.679.
   d. 11.009 to 16.991.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cadimas

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

d


ashley

  • Member
  • Posts: 584
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Sample Exercise Program for Limited Older Adults (cont.) Sample Exercise Program for Limited Older Adults (cont.)
Sample Teaching Plan for Hypertension Cont. Sample Teaching Plan for Hypertension Cont.
Sample Advance Directive Cont. Sample Advance Directive Cont.
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ... A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ...
The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ... The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ...
Video: Introduction to Spirometry

For a complete list of videos, visit our video library