According to an expert for the automotive industry, 68% of Americans know how to drive a manual transmission vehicle. Suppose 220 Americans are sampled. (Give results accurate to at least 4 decimal places.) a. Of the 220 people sampled, 160 respond that they know how to drive a manual transmission vehicle. What is the sample statistic ô ? p b. Under the assumption that the industry expert's claim that 68% of Americans know how to drive a manual transmission vehicle is valid, what is the probability that the survey in part (a) would result in a p that is at least as high as the one found? c. Under the assumption that the industry expert's claim that 68% of Americans know how to drive a manual transmission vehicle is valid, what is the probability that the survey in part (a) would result in a p that is between 66% and 71%?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
**Title: Understanding Sampling and Probability with Manual Transmission Knowledge**

**Introduction:**
According to an expert in the automotive industry, 68% of Americans are knowledgeable about driving a manual transmission vehicle. This exercise explores statistical sampling and probability by considering a sample of 220 Americans. The results should be calculated to at least four decimal places.

**Question A: Calculating the Sample Statistic**
- In the given sample of 220 people, 160 individuals report that they know how to drive a manual transmission vehicle.
- **Task:** Determine the sample statistic \(\hat{p}\).

\[
\hat{p} = \frac{\text{Number of people who know how to drive manual}}{\text{Total number of people sampled}} = \frac{160}{220}
\]

**Question B: Probability of Observing a High Sample Proportion**
- Assuming the expert's claim that 68% of Americans can drive a manual transmission vehicle is true, what is the probability that the sample statistic \(\hat{p}\) from part (a) would be at least as high as the calculated value?

**Question C: Probability of Observing a Moderate Range of Sample Proportions**
- Again, assuming the expert's 68% claim holds, calculate the probability that the sample statistic \(\hat{p}\) from part (a) falls between 66% and 71%.

**Conclusion:**
This exercise helps in understanding how real-world data is gathered and analyzed to form conclusions about broader populations. Through calculating and interpreting sample statistics and probabilities, we can gain insights into the validity of expert claims.
Transcribed Image Text:**Title: Understanding Sampling and Probability with Manual Transmission Knowledge** **Introduction:** According to an expert in the automotive industry, 68% of Americans are knowledgeable about driving a manual transmission vehicle. This exercise explores statistical sampling and probability by considering a sample of 220 Americans. The results should be calculated to at least four decimal places. **Question A: Calculating the Sample Statistic** - In the given sample of 220 people, 160 individuals report that they know how to drive a manual transmission vehicle. - **Task:** Determine the sample statistic \(\hat{p}\). \[ \hat{p} = \frac{\text{Number of people who know how to drive manual}}{\text{Total number of people sampled}} = \frac{160}{220} \] **Question B: Probability of Observing a High Sample Proportion** - Assuming the expert's claim that 68% of Americans can drive a manual transmission vehicle is true, what is the probability that the sample statistic \(\hat{p}\) from part (a) would be at least as high as the calculated value? **Question C: Probability of Observing a Moderate Range of Sample Proportions** - Again, assuming the expert's 68% claim holds, calculate the probability that the sample statistic \(\hat{p}\) from part (a) falls between 66% and 71%. **Conclusion:** This exercise helps in understanding how real-world data is gathered and analyzed to form conclusions about broader populations. Through calculating and interpreting sample statistics and probabilities, we can gain insights into the validity of expert claims.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman