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

Author Question: Let x1 , x2 , and x3 be 0 - 1 variables whose values indicate whether the projects are not done (0) ... (Read 93 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
Let x1 , x2 , and x3 be 0 - 1 variables whose values indicate whether the projects are not done (0) or are done (1). Which answer below indicates that at least two of the projects must be done?
 a. x1 + x2 + x3  2
  b. x1 + x2 + x3  2
  c. x1 + x2 + x3 = 2
  d. x1 - x2 = 0

Question 2

A random sample of 21 checking accounts at a bank showed an average daily balance of 430 with a standard deviation of 50.
 a. Provide a 95 confidence interval estimate of the variance of the population of the checking accounts.
  b. Provide a 95 confidence interval estimate of the standard deviation of the population of the checking accounts.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

otokexnaru

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

A

Answer to Question 2

a. 1463.27 to 5213.76
b. 38.25 to 72.21




darbym82

  • Member
  • Posts: 570
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it


robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

For a complete list of videos, visit our video library