« previous next »

Author Question: The head circumference is measured for a sample of 17 girls and a separate sample of 12 boys. The ... (Read 110 times)

mikaylakyoung

  • Hero Member
  • *****
  • Posts: 531
on: Jul 24, 2018
The head circumference is measured for a sample of 17 girls and a separate sample of 12 boys. The mean for the girls was 49 cm with a standard deviation of 1.25 cm. The mean for the boys was 50 cm with a standard deviation of 0.95 cm. What is the value of the pooled standard error for the difference in mean head circumference between girls and boys?
 a. 0.41
  b. 1.29
  c. 0.43
  d. 1.14

Question 2

For each study, decide if the two samples are independent samples or paired samples. In a random sample of 100 students (60 women and 40 men), the average hours of sleep during finals week were compared.
 a. Independent samples
  b. Paired samples


taylorsonier

  • Sr. Member
  • ****
  • Posts: 377
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

mikaylakyoung

  • Hero Member
  • *****
  • Posts: 531
Reply #2 on: Jul 24, 2018
Thanks


taylorsonier

  • Sr. Member
  • ****
  • Posts: 377
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

neck, head and brain neck, head and brain
Sample Exercise Prescription for Weight Training: Advanced Sample Exercise Prescription for Weight Training: Advanced
Guerrilla Girls. Do Women Have to Be Naked to Get into the Met. Museum? Guerrilla Girls. Do Women Have to Be Naked to Get into the Met. Museum?
Sample Checklist of Opening and Closing Duties Sample Checklist of Opening and Closing Duties
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
A Scalp/Head Injury Presentation A Scalp/Head Injury Presentation
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library