SOLUTION: 6.Insurancecompanies are becoming concerned that the increased use of cell phones is resulting in more car crashes, and they are considering implementing higher rates for drivers w

Question 1177253: 6.Insurancecompanies are becoming concerned that the increased use of cell phones is resulting in more car crashes, and they are considering implementing higher rates for drivers who use such phones. They want to estimate the proportion of drivers who talk on phone while they are driving to within 3% with 95% confidence. What size of sample should they take?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi
 
n =    Using p = .5 as none is given
95% confidence level,  z = 1.96,  ME = .03

n = (1.96/.03)^2 (.5*.5) = 1067.1111

n = 1068 rounding up to nearest whole number

Wish You the Best in your Studies.

RELATED QUESTIONS
Insurance companies are becoming concerned that the increased use of cell phones is... (answered by Boreal)

Suppose the number of cell phones in a household has a binomial distribution with... (answered by ikleyn)

What's the probability of a student having a x cell phone, if it is given that he has a y (answered by jim_thompson5910,ewatrrr)

There are 8 different cell phones in total. You want to buy two cell phones. In how... (answered by Boreal)

Over the last several years, the use of cell phones has increased dramatically. According (answered by stanbon)

**Stanborn - You helped with this one, but gave an answer to another problem** Over... (answered by stanbon)

Suppose that a market research firm is hired to estimate the percent of adults living in (answered by Boreal)

If the probabilities that a cell phone technician will repair 5,6,7,8,9, or 10 or more... (answered by Boreal,ikleyn)

Twenty four percent of cell phone users use their cell phones to access the internet. In... (answered by stanbon)