« previous next »

Author Question: There are 500 employees in a firm, and 45 are female. A sample of 60 employees is selected randomly. ... (Read 94 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
on: Jun 24, 2018
There are 500 employees in a firm, and 45 are female. A sample of 60 employees is selected randomly.
 a. Determine the standard error of the proportion.
  b. What is the probability that the sample proportion of females is between .40 and .55?

Question 2

Assume z is a standard normal random variable. Then P(1.20  z  1.85) equals _____.
 a. .4678
  b. .3849
  c. .8527
  d. .0829


jamesnevil303

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .0603
b. .7482

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Nurse examining and measuring hematuria sample from client with a UTI Nurse examining and measuring hematuria sample from client with a UTI
Patient teaching: female breast assessment Patient teaching: female breast assessment
Sample prescription for chlorhexidine. Sample prescription for chlorhexidine.
Basic two-handed kneading. Tissues are lifted with the whole hand in firm contact. Basic two-handed kneading. Tissues are lifted with the whole hand in firm contact.
A cowbird with its foster parent. A female cowbird minimizes her cost of parental care by laying her A cowbird with its foster parent. A female cowbird minimizes her cost of parental care by laying her
How to impress a choosy female: How to impress a choosy female:
Video: Transferring genes into plants Animation

For a complete list of videos, visit our video library