In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below. C (a) What is the sample in this study? What is the population of interest? Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice. adults 19 years of age or older. OA. The sample is all adults with a cell phone. OB. The sample is all adults 19 years of age or older. OC. The sample is the adults 19 years of age or older. (Type a whole number.) O D. The sample is all adults. Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The population is all adults. OB. The population is all adults 19 years of age or older. OC. The population is all adults with a cell phone. OD. The population is the (Type a whole number.) (b) What is the variable of interest in this study? Is it qualitative or quantitative? The variable of interest is This variable is because (c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. p=0 (Round to three decimal places as needed.)
In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below. C (a) What is the sample in this study? What is the population of interest? Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice. adults 19 years of age or older. OA. The sample is all adults with a cell phone. OB. The sample is all adults 19 years of age or older. OC. The sample is the adults 19 years of age or older. (Type a whole number.) O D. The sample is all adults. Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The population is all adults. OB. The population is all adults 19 years of age or older. OC. The population is all adults with a cell phone. OD. The population is the (Type a whole number.) (b) What is the variable of interest in this study? Is it qualitative or quantitative? The variable of interest is This variable is because (c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. p=0 (Round to three decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below.
---
**(a) What is the sample in this study? What is the population of interest?**
Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice.
- A. The sample is all adults with a cell phone.
- B. The sample is all adults 19 years of age or older.
- C. The sample is the [ ] adults 19 years of age or older. (Type a whole number.)
- D. The sample is all adults.
Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice.
- A. The population is all adults.
- B. The population is all adults 19 years of age or older.
- C. The population is all adults with a cell phone.
- D. The population is the [ ] adults 19 years of age or older. (Type a whole number.)
**(b) What is the variable of interest in this study? Is it qualitative or quantitative?**
The variable of interest is [ ] This variable is [ ] because [ ]
**(c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom.**
p̂ = [ ] (Round to three decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fac3be618-b645-4bd8-855b-808ff3fc18d4%2F4401a08c-0b4c-4cf6-8eb1-dad396be4833%2Fl4cta2l_processed.png&w=3840&q=75)
Transcribed Image Text:In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below.
---
**(a) What is the sample in this study? What is the population of interest?**
Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice.
- A. The sample is all adults with a cell phone.
- B. The sample is all adults 19 years of age or older.
- C. The sample is the [ ] adults 19 years of age or older. (Type a whole number.)
- D. The sample is all adults.
Determine the population of interest. Select the correct choice below and, if necessary, fill in the answer box within your choice.
- A. The population is all adults.
- B. The population is all adults 19 years of age or older.
- C. The population is all adults with a cell phone.
- D. The population is the [ ] adults 19 years of age or older. (Type a whole number.)
**(b) What is the variable of interest in this study? Is it qualitative or quantitative?**
The variable of interest is [ ] This variable is [ ] because [ ]
**(c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom.**
p̂ = [ ] (Round to three decimal places as needed.)
Transcribed Image Text:---
**Standard Normal Distribution Table Overview**
**Diagram Explanation:**
The diagram at the top left shows a standard normal distribution curve, also known as a bell curve. The shaded area to the left of point "x" represents the area under the curve, which corresponds to probabilities found in the table below.
**Standard Normal Distribution Table:**
The table provides values for the cumulative probabilities from the standard normal distribution. The "z" values range from -3.4 to 0.0. The probability values are given for z-scores at specific decimal points (e.g., 0.01, 0.02).
| **z** | **0.00** | **0.01** | **0.02** | **0.03** | **0.04** | **0.05** | **0.06** | **0.07** | **0.08** | **0.09** |
|--------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|
| **-3.4** | 0.0003 | 0.0003 | 0.0003 | 0.0003 | 0.0003 | 0.0003 | 0.0003 | 0.0003 | 0.0002 | 0.0002 |
| **-3.3** | 0.0005 | 0.0005 | 0.0005 | 0.0005 | 0.0004 | 0.0004 | 0.0004 | 0.0004 | 0.0003 | 0.0003 |
| **-3.2** | 0.0007 | 0.0007 | 0.0007 | 0.0006 | 0.0006 | 0.0006 | 0.0006 | 0.0005 | 0.0005 | 0.0005 |
| **-3.1** | 0.0010 | 0.0010 | 0.0009 | 0.0009 | 0.0009 | 0.0008 |
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 3 images
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
Transcribed Image Text:OE. It is information obtained from a survey.
What is the source of variability the random variable?
A. Random errors
B. The sample size
C. The individuals selected to be in the study
D. The question asked in the survey
(e) Construct and interpret a 95% confidence interval for the population proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. Select the correct choice below and fill in any answer boxes
within your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.)
A. There is a
% probability the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is between
B. We are 95% confident the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is between
(f) What ensures that the results of this study are representative of all adults 19 years of age or older?
A. The large sample size
B. The high confidence level
C. Random sampling
D. Sampling from adults 19 years of age or older
and
and
Solution
by Bartleby ExpertRecommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman