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

Author Question: A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers. After ... (Read 109 times)

abarnes

  • Hero Member
  • *****
  • Posts: 556
on: Jul 24, 2018
A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers.
 
  After interviewing all 200 participants in the study, the researcher compared the rate of depression among the smokers with the rate of depression among nonsmokers. A) observational study B) experiment

Question 2

Assume that the random variable X is normally distributed, with mean  = 100 and standard deviation s = 20. Compute the probability P(X > 116).
 
  A) 0.2119 B) 0.1977 C) 0.7881 D) 0.2420


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


abarnes

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 24, 2018
TY


joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #3 on: Jul 24, 2018
You're welcome


« previous next »
 

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Generalized transduction by random incorporation of bacterial DNA into phage heads Generalized transduction by random incorporation of bacterial DNA into phage heads
Population genetics sample question Population genetics sample question
Sample Program for Changing Daily Caloric Intake Sample Program for Changing Daily Caloric Intake
Psychoactive substances: (left) Psilocybin is obtained from a species of mushroom; (right) LSD is ... Psychoactive substances: (left) Psilocybin is obtained from a species of mushroom; (right) LSD is ...
Sample prescription for chlorhexidine. Sample prescription for chlorhexidine.
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Video: Oxygen transport: association and dissociation & Factors that affect hemoglobin's saturation with O2

For a complete list of videos, visit our video library