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The researchers from a study interviewed two random samples, one in 2015 and one in 2018. Both samples were asked "Have you read a print book in the last year?" Use the accompanying results from the study (c). Read a print book Total 2537 1401 2015 2018 Yes 1212 1325 No Total 712 1924 689 2014 a. Find and compare the sample proportions that had read a print book for these two groups. The sample proportion of the 2015 subjects that read a book within the last year is 0.6299. The sample proportion of the 2018 subjects that read a book within the last year is 0.6579 (Round to four decimal places as needed.) The sample proportion for 2015 is less than the sample proportion for 2018. b. Find a pooled estimate of the sample proportion. A pooled estimate of the sample proportion is. (Round to four decimal places as needed.)

The researchers from a study interviewed two random samples, one in 2015 and one in 2018. Both samples were asked "Have you read a print book in the last year?" Use the accompanying results from the study (c). Read a print book Total 2537 1401 2015 2018 Yes 1212 1325 No Total 712 1924 689 2014 a. Find and compare the sample proportions that had read a print book for these two groups. The sample proportion of the 2015 subjects that read a book within the last year is 0.6299. The sample proportion of the 2018 subjects that read a book within the last year is 0.6579 (Round to four decimal places as needed.) The sample proportion for 2015 is less than the sample proportion for 2018. b. Find a pooled estimate of the sample proportion. A pooled estimate of the sample proportion is. (Round to four decimal places as needed.)

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
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The researchers from a study interviewed two random samples, one in 2015 and one in 2018. Both samples were asked, "Have you read a print book in the last year?" The accompanying results from the study are presented in the table below: | Read a print book | 2015 | 2018 | Total | |-------------------|------|------|-------| | Yes | 1212 | 1325 | 2537 | | No | 712 | 689 | 1401 | | Total | 1924 | 2014 | 3938 | **Tasks:** **a. Find and compare the sample proportions that had read a print book for these two groups.** The sample proportion of the 2015 subjects that read a book within the last year is **0.6299**. The sample proportion of the 2018 subjects that read a book within the last year is **0.6579**. (Rounded to four decimal places as needed.) The sample proportion for 2015 is **less than** the sample proportion for 2018. **b. Find a pooled estimate of the sample proportion.** A pooled estimate of the sample proportion is calculated based on the total number of 'Yes' responses over the total number of respondents for both years. *Round to four decimal places as needed.*
Transcribed Image Text:The researchers from a study interviewed two random samples, one in 2015 and one in 2018. Both samples were asked, "Have you read a print book in the last year?" The accompanying results from the study are presented in the table below: | Read a print book | 2015 | 2018 | Total | |-------------------|------|------|-------| | Yes | 1212 | 1325 | 2537 | | No | 712 | 689 | 1401 | | Total | 1924 | 2014 | 3938 | **Tasks:** **a. Find and compare the sample proportions that had read a print book for these two groups.** The sample proportion of the 2015 subjects that read a book within the last year is **0.6299**. The sample proportion of the 2018 subjects that read a book within the last year is **0.6579**. (Rounded to four decimal places as needed.) The sample proportion for 2015 is **less than** the sample proportion for 2018. **b. Find a pooled estimate of the sample proportion.** A pooled estimate of the sample proportion is calculated based on the total number of 'Yes' responses over the total number of respondents for both years. *Round to four decimal places as needed.*
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