This topic contains a solution. Click here to go to the answer

Author Question: Which of the following symbols represents the standard deviation of a population? a. 2 b. c. ... (Read 92 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
Which of the following symbols represents the standard deviation of a population?
 a.  2
  b.
  c.
  d. x

Question 2

A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation of 240 . The t value needed to develop the 95 confidence interval for the population mean SAT score is
 a. 1.96.
   b. 1.998.
   c. 1.645.
   d. 1.28.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cloud

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

b

Answer to Question 2

b




deesands

  • Member
  • Posts: 514
Reply 2 on: Jun 24, 2018
Gracias!


tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

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?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

For a complete list of videos, visit our video library