In spite of the potential safety hazards, some people would like to have an internet connection in their car. A preliminary survey of adult Americans has estimated this proportion to be somewhere around 0.20. (a)Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like an internet connection in their car to within 0.05 with 95% confidence. (Round your answer up to the nearest whole number.) b. The formula for determining sample size given in this section corresponds to a confidence level of 95%. How would you modify this formula if a 99% confidence level was desired? c. Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like an internet connection in their car to within 0.05 with 99% confidence. (Round your answer up to the nearest whole number.)

From the provided information, Proportion (p̂) = 0.20

Answered: In spite of the potential safety…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Concept explainers

Question

In spite of the potential safety hazards, some people would like to have an internet connection in their car. A preliminary survey of adult Americans has estimated this proportion to be somewhere around 0.20.

(a)

Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like an internet connection in their car to within 0.05 with 95% confidence. (Round your answer up to the nearest whole number.)

The formula for determining sample size given in this section corresponds to a confidence level of 95%. How would you modify this formula if a 99% confidence level was desired?

Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like an internet connection in their car to within 0.05 with 99% confidence. (Round your answer up to the nearest whole number.)

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions