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

Author Question: From a population of 200 elements, the standard deviation is known to be 14 . A sample of 49 ... (Read 147 times)

newyorker26

  • Hero Member
  • *****
  • Posts: 536
on: Jun 24, 2018
From a population of 200 elements, the standard deviation is known to be 14 . A sample of 49 elements is selected. It is determined that the sample mean is 56 . The standard error of the mean is _____.
 a. 3
  b. 2
  c. greater than 2
  d. less than 2

Question 2

The student body of a large university consists of 30 Business majors. A random sample of 20 students is selected.
 a. Define the random variable in words for this experiment.
  b. What is the probability that among the students in the sample at least 10 are Business majors?
  c. What is the probability that at least 16 are not Business majors?
  d. What is the probability that exactly 10 are Business majors?
  e. What is the probability that exactly 12 are not Business majors?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bdobbins

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

a. x = the number of students out of 20 who are Business majors or
y = the number of students out of 20 who are not Business majors
b. .0480
c. .2375
d. .0308
e. .1144


newyorker26

  • Member
  • Posts: 536
Reply 2 on: Jun 24, 2018
Excellent

recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Abiotic factors influence population densities. Abiotic factors influence population densities.
Population and Settlement Population and Settlement
Sample time management planning chart for a massage student. Sample time management planning chart for a massage student.
Policies on fertility and population growth Policies on fertility and population growth
CYP2D6 pharmacogenetic profile in a Swedish population CYP2D6 pharmacogenetic profile in a Swedish population
Demographic transition model for changes in population growth rates and sizes, correlated with long- Demographic transition model for changes in population growth rates and sizes, correlated with long-
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library