A random sample of 19 subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is recorded below. 32 , 42 , 29 , 50 , 33 , 41 , 28 , 31 , 42 , 26 , 48 , 37 , 45 , 39 , 47 , 29 , 40 , 30 , 33 Send data to calculator Send data to Excel If we assume that the completion times are normally distributed, find a 95% confidence interval for the true mean completion time for this task. Then find the lower limit and upper limit of the 95% confidence interval.
A random sample of 19 subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is recorded below. 32 , 42 , 29 , 50 , 33 , 41 , 28 , 31 , 42 , 26 , 48 , 37 , 45 , 39 , 47 , 29 , 40 , 30 , 33 Send data to calculator Send data to Excel If we assume that the completion times are normally distributed, find a 95% confidence interval for the true mean completion time for this task. Then find the lower limit and upper limit of the 95% confidence interval.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
Related questions
Question
A random sample of
19
subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is recorded below.
32
42
29
50
33
41
28
31
42
26
48
37
45
39
47
29
40
30
33
Send data to calculator
|
Send data to Excel
|
If we assume that the completion times are
95%
confidence interval for the true mean completion time for this task. Then find the lower limit and upper limit of the
95%
confidence interval.
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