Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. 1 in one study subjects were randomly given either

1 In one study subjects were randomly given either 500 or 1000 milligrams of vitamin...

90.2K

Verified Solution

Question

Statistics

image

1 In one study subjects were randomly given either 500 or 1000 milligrams of vitamin C daily and the number of colds they came down with during a winter season was noted In a second study people responded to a questionnaire asking about the average number of hours they sleep per night and the number of colds they came down with during a winter season A The first study was an experiment without a control group while the second was an observational study B The first study was an observational study while the second was a controlled experiment C Both studies were controlled experiments D Both studies were observational studies E None of the above is a correct statement

Answer & Explanation Solved by verified expert
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

Finance
1.2K views

In Chapter 7 three different stock valuation techniques are presented; the dividend growth model, the free...

General Management
1.2K views

In the case of a start-up company (for interactive stories book for children) , what is...

Basic Math
1.2K views

Find the derivative of the trigonometric function.g(x) = 4 tan(6x)g'(x) =

Basic Math
1.2K views

Select the correct answer.A regular octagon rotates 360 about its center. How many times does...

Calculus
1.2K views

Use long division to find the quotient and remainder.(2x + 9x - 12) (x...

Calculus
1.2K views

An isotope of sodium has a half life of 20 hours Suppose an initial sample...

Accounting
1.2K views

QUESTION 41 ABC Analysis By Current Inventory Value - Answer the multiple choice...

Accounting
1.2K views

Harlick v. Blue Shield of California 1. Who were the parties involved in the case?...

Accounting
1.2K views

The comparative statements of Lawn Company are presented here. ...

Accounting
1.2K views

James and Esther Johnson live at 45678 S.W. 112th Street, Homestead, FL 33033. James, who...

Accounting
1.2K views

Your classmate asserts, "Accountants should not need to take business courses besides accounting, because they...

Accounting
1.2K views

Find the future value for each of the following scenarios, where m is the periodic...