« previous next »

Author Question: The head circumference is measured for a sample of 17 girls and a separate sample of 12 boys. The ... (Read 103 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?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Closeup of the head of a giraffe at the Melbourne Zoo Closeup of the head of a giraffe at the Melbourne Zoo
Nursing history for head assessment Nursing history for head assessment
Among non-Muslims in the United States, wearing a head scarf, or a khimar, is a personal fashion ... Among non-Muslims in the United States, wearing a head scarf, or a khimar, is a personal fashion ...
Passive touch by holding the head lightly. Passive touch by holding the head lightly.
Separate the metatarsals. Create space between the metatarsals by holding onto the sides of the foot ... Separate the metatarsals. Create space between the metatarsals by holding onto the sides of the foot ...
Video: Component of feedback systems & Communication and regulation of body systems

For a complete list of videos, visit our video library