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.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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