Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. police recorded the average speed of cars driving

Police recorded the average speed of cars driving on a busy street by a school...

90.2K

Verified Solution

Question

Statistics

image

Police recorded the average speed of cars driving on a busy street by a school For a sample of 36 speeds it was determined that the average amount over the speed limit for the 36 speeds w 12 6 mph with a standard deviation of 9 mph The 95 confidence interval estimate for this sample is 9 55 mph to 15 65 mph a What is the margin of error for this problem b What size sample is needed to reduce the margin of error to no more than 2

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

Biology
1.2K views

A cell is LEAST likely to require a transport protein to move which of the following...

Physics
1.2K views

The motion of an harmonic oscillator is governed by the differential equation 2¨x + 3 ˙x...

Physics
1.2K views

3 9 A passive network contains resistors a 70 mH inductor and a 25 F...

Geometry
1.2K views

When a conditional and its convers eare true, you can combine them as a truebiconditionalhypothesiscounterexampleunconditional

Basic Math
1.2K views

are issued by travel or credit card companies O Travelers checks O Bonds CDs

Basic Math
1.2K views

6 List the sequence of levels HIGH and LOW that represent each of the following...

Calculus
1.2K views

Find the consumer s surplus for the following demand function at the given point 3...

Accounting
1.2K views

How were the amounts computed? Juanita has a business and realizes $300,000...

Accounting
1.2K views

Chris is the owner of a small bookshop while Kelvin is an expert who provides...

Accounting
1.2K views

Happy Days Restaurant has determined the following amounts related to costs of menu items. Per...

Accounting
1.2K views

[a] (b)

Accounting
1.2K views

EXHIBIT 8-8 Child Tax Credit Phase-Out Threshold Required information Problem 8-70 (LO 8-4) (Static) [The...