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

Author Question: A university has 5,000 students. The manager of food services at the university is interested in ... (Read 311 times)

Alainaaa8

  • Hero Member
  • *****
  • Posts: 576
on: Jun 24, 2018
A university has 5,000 students. The manager of food services at the university is interested in determining the total lunch expenditure. A simple random sample of 121 lunch receipts was selected. The sample showed an average of 3 with a standard deviation of .40.
 a. Estimate the standard error of the sample mean.
  b. Develop an approximate 95 confidence interval for the population mean.
  c. Estimate the population's total expenditure for lunch.
  d. Develop an approximate 95 confidence interval for the total expenditure for lunch.

Question 2

Which of the following statements is true regarding the data set 8, 8, 8, 8, and 8?
 a. The range equals 0.
  b. The standard deviation equals 0.
  c. The coefficient of variation equals 0.
  d. All of these choices are true.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .0359
b. 2.93 to 3.07 (rounded)
c. 15,000
d. 14,640.79 to 15,359.21

Answer to Question 2

D


Alainaaa8

  • Member
  • Posts: 576
Reply 2 on: Jun 24, 2018
Excellent

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Fast food effects on body Fast food effects on body
CPT Modifiers Used for Medical Office Services CPT Modifiers Used for Medical Office Services
CPT Modifiers Used for Medical Office Services Cont. CPT Modifiers Used for Medical Office Services Cont.
Endocrine regulation of food intake and energy homeostasis in mammals Endocrine regulation of food intake and energy homeostasis in mammals
The Location and Number of Food- and Beverage-Processing Facilities The Location and Number of Food- and Beverage-Processing Facilities
Students working around a computer Students working around a computer
Video: Simple and Double Sugar

For a complete list of videos, visit our video library