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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 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. OA. The sample is all adults with a cell phone. OB. 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.) 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. O A. The population is all adults. O B. The population is all adults 19 years of age or older. O C. 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 adults 19 years of age or older. This variable is (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= (Round to three decimal places as needed.) because

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 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. OA. The sample is all adults with a cell phone. OB. 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.) 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. O A. The population is all adults. O B. The population is all adults 19 years of age or older. O C. 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 adults 19 years of age or older. This variable is (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= (Round to three decimal places as needed.) because

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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). --- (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 [dropdown] because [dropdown] (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. \[ \hat{p} = [ \quad ] \] (Round to three decimal places as needed.)
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). --- (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 [dropdown] because [dropdown] (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. \[ \hat{p} = [ \quad ] \] (Round to three decimal places as needed.)
Expert Solution
Step 1: Proportion estimated.

(a). C. The sample is 1000 adults of 19 years of age or older.

      B. The population  is all adults of 19 years of age or older.


(b). The variable of interest is qualitative.The variable is qualitative because adults of 19 years of age or older may or may not confess in bringing and using  their cell phones every trip to bathroom.


(c) The point estimate for proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is

p with overparenthesis on top equals 258 over 1000= 0.258

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