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EXERCISE 3.7 1. A group of students from a particular program are having problem in analyzing data using statistical software. A statistics professor offered a two-day workshop on data analysis in order to help the students. The following table gives the test scores of seven students before and after attending the workshop. Before 56 69 48 74 65 71 58 After 62 73 44 85 71 70 69 a) Construct the 95% confidence interval for the difference in the mean scores before and after attending the workshop. b) Does attending the workshop improve the scores of the students?

EXERCISE 3.7 1. A group of students from a particular program are having problem in analyzing data using statistical software. A statistics professor offered a two-day workshop on data analysis in order to help the students. The following table gives the test scores of seven students before and after attending the workshop. Before 56 69 48 74 65 71 58 After 62 73 44 85 71 70 69 a) Construct the 95% confidence interval for the difference in the mean scores before and after attending the workshop. b) Does attending the workshop improve the scores of the students?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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EXERCISE 3.7 1. A group of students from a particular program are having problem in analyzing data using statistical software. A statistics professor offered a two-day workshop on data analysis in order to help the students. The following table gives the test scores of seven students before and after attending the workshop. Before 56 69 48 74 65 71 58 After 62 73 44 85 71 70 69 a) Construct the 95% confidence interval for the difference in the mean scores before and after attending the workshop. b) Does attending the workshop improve the scores of the students?
Transcribed Image Text:EXERCISE 3.7 1. A group of students from a particular program are having problem in analyzing data using statistical software. A statistics professor offered a two-day workshop on data analysis in order to help the students. The following table gives the test scores of seven students before and after attending the workshop. Before 56 69 48 74 65 71 58 After 62 73 44 85 71 70 69 a) Construct the 95% confidence interval for the difference in the mean scores before and after attending the workshop. b) Does attending the workshop improve the scores of the students?
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