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

1. Assume that a sample is used to estimate a population proportion p. Find the 90%...

70.2K

Verified Solution

Question

Basic Math

1. Assume that a sample is used to estimate a populationproportion p. Find the 90% confidence interval for asample of size 112 with 28% successes. Enter your answer as atri-linear inequality using decimals (not percents) accurate tothree decimal places.

2.  You want to obtain a sample to estimate apopulation proportion. Based on previous evidence, you believe thepopulation proportion is approximately 88%. You would like to be98% confident that your estimate is within 3% of the truepopulation proportion. How large of a sample size is required? n=________

3.  You want to obtain a sample to estimate apopulation mean. Based on previous evidence, you believe thepopulation standard deviation is approximately ?=43.7?=43.7. Youwould like to be 90% confident that your estimate is within 3 ofthe true population mean. How large of a sample size is required?n= _____

Answer & Explanation Solved by verified expert
4.5 Ratings (613 Votes)
Solution Given that1 n 112Point estimate sample proportion 28 0281 1 028 072At 90 confidence level 1 90 1 090 0102 005Z2    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

Psychology
1.2K views

What is thirteen principles of display design in the manufacturing industry. Give examples.

Biology
1.2K views

Why are weather balloons launched at the same time for almost every weather station across...

Basic Math
1.2K views

3 1 point A bucket contains 425 mL of water The capacity of water in...

Algebra
1.2K views

2 If f x 4x 5 what is the value of f 3 1 2...

Algebra
1.2K views

Simplify the rational expression Use positive exponent 3x y 5x O 3x 51 5 O...

Algebra
1.2K views

Find functions f and g so that f o g H H x 9x 5...

Accounting
1.2K views

ToasToe Inc. (TI) is a manufacturer of heating elements for toaster ovens. To...

Accounting
1.2K views

Para un equipo de 14 personas, cmo se compara el costo laboral semanal real con...

Accounting
1.2K views

The period of time for which support is furnished, not the total cost of support,...

Accounting
1.2K views

tabs: 2. Replaced the April 20 account payable to Locust with a 90-day, $35,000 note...

Accounting
1.2K views

Exercise 8-9A (Algo) Computing and recording straight-line versus double-declining-balance depreciation LO 8-2,8-3 Skip to...

Accounting
1.2K views

1. The Practice of Management written by A. O Peter F Drucker B. O Terry...