Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. assume that a sample is used to estimate a populat

Assume that a sample is used to estimate a population mean ? . Find the margin...

60.1K

Verified Solution

Question

Basic Math

Assume that a sample is used to estimate a population mean ? .Find the margin of error M.E. that corresponds to a sample of size18 with a mean of 47.4 and a standard deviation of 16.9 at aconfidence level of 90%. Report ME accurate to one decimal placebecause the sample statistics are presented with this accuracy.M.E. _________

he effectiveness of a blood-pressure drug is being investigated.An experimenter finds that, on average, the reduction in systolicblood pressure is 32.7 for a sample of size 288 and standarddeviation 11.5.

Estimate how much the drug will lower a typical patient's systolicblood pressure (using a 80% confidence level).

Enter your answer as a tri-linear inequality accurate to onedecimal place (because the sample statistics are reported accurateto one decimal place).

______< ?< ______

SAT scores are distributed with a mean of 1,500 and a standarddeviation of 300. You are interested in estimating the average SATscore of first year students at your college. If you would like tolimit the margin of error of your 95% confidence interval to 25points, how many students should you sample?

Make sure to give a whole number answer.

Answer & Explanation Solved by verified expert
3.6 Ratings (601 Votes)
1n Sample Size 18 SampleMean 474s Sample SD 169SE s 169 39834 010ndf n 1 18 1    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

In C3 plants carbon fixation occurs in the A cells and the enzyme Rubisco is...

Basic Math
1.2K views

3 Suppose starting from point A you must walk to the river shown in the...

Calculus
1.2K views

A function f x has a local maximum if the curve changes from increasing to...

Algebra
1.2K views

What number should not be included in the domain of the rational expression {(x+2)/(x-6)} ?In...

Accounting
1.2K views

On January 1, 2019, Monica Company acquired 70 percent of Young Companys outstanding common stock...

Accounting
1.2K views

Problem 14-15 (Algo) Comprehensive Ratio Analysis [LO14-2, LO14-3, LO14-4, LO14-5, LO14-6] The following information opplies...

Accounting
1.2K views

Fred turned 70 on January 1, 2018. He took the first required minimum distribution (RMD)...

Accounting
1.2K views

Find an article that interests you regarding internal audit. Discuss the article and what you...

Accounting
1.2K views

Calculate the earnings per share (average of 418,000 shares outstanding for the year) for 2020....

Accounting
1.2K views

Task 2: Effects of a transaction on asset/liability/owner's equity Identify how each of the following...

Finance
1.2K views

Three friends Tom, Jerry, and Kate are members of an investment club. They each have...

Finance
1.2K views

Dividende Using the data in the table to the right, calculate the return for investing...