The results of a study of 268 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the 7 Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below Test score improvements Mean change in score Standard deviation of score changes Math Verbal 17 67 49 ts ho po mor we above nerval brary b. Construct and interpret a 95% confidence interval for the population mean change in the Verbal score for students who pay a private tutor frect: 0 ions (Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer > Check Answer Clear All parts remaining 1256 AM 10/30/2019 a ype here to search
The results of a study of 268 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the 7 Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below Test score improvements Mean change in score Standard deviation of score changes Math Verbal 17 67 49 ts ho po mor we above nerval brary b. Construct and interpret a 95% confidence interval for the population mean change in the Verbal score for students who pay a private tutor frect: 0 ions (Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer > Check Answer Clear All parts remaining 1256 AM 10/30/2019 a ype here to search
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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Part b. Please show TI 84 steps
Transcribed Image Text:The results of a study of 268 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the
7
Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below
Test score improvements
Mean change in score
Standard deviation of score changes
Math
Verbal
17
67
49
ts
ho po
mor we above nerval
brary
b. Construct and interpret a 95% confidence interval for the population mean change in the Verbal score for students who pay a private tutor
frect: 0
ions
(Round to three decimal places as needed.)
Enter your answer in the edit fields and then click Check Answer
>
Check Answer
Clear All
parts
remaining
1256 AM
10/30/2019
a
ype here to search
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