Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. a clinical trial was conducted to test the effecti

A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...

50.1K

Verified Solution

Question

Basic Math

A clinical trial was conducted to test the effectiveness of adrug for treating insomnia in older subjects. Before? treatment, 20subjects had a mean wake time of 105.0 min. After? treatment, the20 subjects had a mean wake time of 98.5 min and a standarddeviation of 21.52 min. Assume that the 20 sample values appear tobe from a normally distributed population and construct a 95?%confidence interval estimate of the mean wake time for a populationwith drug treatments. What does the result suggest about the meanwake time of 105.0 min before the? treatment? Does the drug appearto be? effective? Construct the 95?% confidence interval estimateof the mean wake time for a population with the treatment.

Answer & Explanation Solved by verified expert
3.6 Ratings (271 Votes)
Solution Given thatPoint estimate sample mean 985sample standard deviation s 2152sample size n 20Degrees of    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Biology
1.2K views

What opinion did the Republican Party have about slavery?A. They had split over the issue...

Finance
1.2K views

Question Workspace Check My Work (1 remaining) eBook Problem Walk-Through New-Project Analysis The Campbell Company is considering adding a robotic...

Basic Math
1.2K views

The number of new businesses established in the US since 1990 can be modeled by the...

Biology
1.2K views

Consider two unlinked loci, A, a and B, b. The frequencies of the nine genotypes in...

Psychology
1.2K views

assess and evaluate contemporary caribbean society being integrated and not a plural society .

Physics
1.2K views

Two point charges 10 C and 4 C are placed 20 cm apart The electrostatic...

Geometry
1.2K views

AB BC and BC CD AB 3x AB CD x 1 3 x 4 Statement...

Basic Math
1.2K views

Clay's hair is 10 2/7 inches long. The barber trims off 1/4 inch. About...

Basic Math
1.2K views

The function V(t) = -3500t + 19000, where V is value and t is time...

Calculus
1.2K views

Differentiate the function y 2 6x 5 3 2x 9 y 0

Accounting
1.2K views

What are the requirement's for external auditors to work on an audit engagement?

Finance
1.2K views

Use Bloomberg function to find recent bond yield. 3. Use Bloomberg function...