Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. a medical researcher treats 400 subjects who have

A medical researcher treats 400 subjects who have high cholesterol with a new drug The...

90.2K

Verified Solution

Question

Statistics

image

A medical researcher treats 400 subjects who have high cholesterol with a new drug The average decrease in cholesterol level is 90 mg dL after two months of taking the drug Assume that the decrease in cholesterol after two months of taking the drug follows a Normal distribution with unknown mean and standard deviation o 30 Which approach would produce a confidence interval with a smaller margin of error than the 95 confidence interval you computed above O A Give the drug to only 100 subjects rather than 400 because 100 people are easier to manage and control B Give the drug to 500 subjects rather than 400 O C Compute a 99 confidence interval rather than a 95 confidence interval The increase in confidence indicates that we have a better interval OD None of the above

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

Basic Math
1.2K views

Part 2: Analyzing Study Time per Week You spoke with your instructor and she claimed...

Chemistry
1.2K views

The following data were obtained from a batch experiment for the reaction where A is converted...

Basic Math
1.2K views

There is one 1$ bill and one 5$ bill in your left pocket and three 1$...

Accounting
1.2K views

Carlsville Company, which began operations in 2017, invests its idle cash in trading securities. The following...

Physics
1.2K views

A thin plano convex lens of refractive index 1 5 is kept such that medium...

Geometry
1.2K views

6 Bonus Find the dimension of the space spanned by the following vectors Show all...

Calculus
1.2K views

Solve for the variable P to two decimal places.60,900 = Pe^0.099(12)P = (Round to two...

Algebra
1.2K views

Write-2-log? +log?(x + 1) + log, y as a single logarithm with coefficient 1.log?(x +...

Accounting
1.2K views

Es Co. produces a single product. Last year Es's net operating income under absorption costing...

Accounting
1.2K views

Felipe Restaurant and pie shop needs help defining the costs for his business. He also...

Finance
1.2K views

Which of the following statements is true about the values recorded in the balance sheet...

Accounting
1.2K views

PLEASE HELP DUE TONIGHT!! ALL PART OF QUESTION 1-8!! C4-2(Algo) From Recording Transactions (Including...