Textbook ExpertVerified Tutor
12 Nov 2021
Given information
The sample size is 100. The sample mean and sample standard deviation is 23.6 and 7 hours respectively. The population is normally distributed.
From the previous task, the 90% confidence interval for the population mean is found to be: 
Step-by-step explanation
Step 1.
The error bound is equal to half the difference between the upper and lower limit of the confidence interval:
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 95ai
- Problem 95aii
- Problem 95aiii
- Problem 95b
- Problem 95c
- Problem 95di
- Problem 95dii
- Problem 95diii
- Problem 95e
- Problem 96a
- Problem 96b
- Problem 96ci
- Problem 96cii
- Problem 96ciii
- Problem 97ai
- Problem 97aii
- Problem 97aiii
- Problem 97b
- Problem 97c
- Problem 97di
- Problem 97dii
- Problem 97diii
- Problem 97e
- Problem 97f
- Problem 97g
- Problem 98a3
- Problem 98a2
- Problem 98a1
- Problem 98b
- Problem 98c
- Problem 98d
- Problem 98ei
- Problem 98eii
- Problem 98eiii
- Problem 98fi
- Problem 98fii
- Problem 98fiii
- Problem 98g
- Problem 98h
- Problem 99ai
- Problem 99aii
- Problem 99aiii
- Problem 99b
- Problem 99c
- Problem 99di
- Problem 99dii
- Problem 99diii
- Problem 99e
- Problem 100a
- Problem 100b
- Problem 100c
- Problem 100d
- Problem 101a
- Problem 101b
- Problem 101c
- Problem 101d
- Problem 102
- Problem 103
- Problem 104a
- Problem 104b
- Problem 104c
- Problem 104d
- Problem 104e
- Problem 105ai
- Problem 105aii
- Problem 105aiv
- Problem 105b
- Problem 105c
- Problem 105di
- Problem 105dii
- Problem 105diii
- Problem 105e
- Problem 105iii
- Problem 106ai
- Problem 106aii
- Problem 106aiii
- Problem 106aiv
- Problem 106b
- Problem 106c
- Problem 106di
- Problem 106dii
- Problem 106diii
- Problem 106e
- Problem 107ai
- Problem 107aii
- Problem 107aiii
- Problem 107aiv
- Problem 107b
- Problem 107c
- Problem 107d
- Problem 107ei
- Problem 107eii
- Problem 107eiii
- Problem 107f
- Problem 108ai
- Problem 108aii
- Problem 108aiii
- Problem 108aiv
- Problem 108b
- Problem 108c
- Problem 108d
- Problem 108ei
- Problem 108eii
- Problem 108eiii
- Problem 108f
- Problem 109
- Problem 110
- Problem 111ai
- Problem 111aii
- Problem 111aiii
- Problem 111aiv
- Problem 111b
- Problem 111c
- Problem 111di
- Problem 111dii
- Problem 111diii
- Problem 112a
- Problem 112b
- Problem 112ci
- Problem 112cii
- Problem 112ciii
- Problem 112d
- Problem 113ai
- Problem 113aii
- Problem 113aiii
- Problem 113b
- Problem 113c
- Problem 113d
- Problem 113e
- Problem 114ai
- Problem 114aii
- Problem 114aiii
- Problem 114aiv
- Problem 114b
- Problem 114c
- Problem 114di
- Problem 114dii
- Problem 114diii
- Problem 114e
- Problem 115a
- Problem 115b
- Problem 115c
- Problem 115d
- Problem 116a
- Problem 116b
- Problem 116c
- Problem 116d
- Problem 117a
- Problem 117b
- Problem 118ai
- Problem 118aii
- Problem 118aiii
- Problem 118b
- Problem 118c
- Problem 118di
- Problem 118dii
- Problem 118diii
- Problem 118e
- Problem 118i
- Problem 119a
- Problem 119b
- Problem 119ci
- Problem 119cii
- Problem 119ciii
- Problem 120a
- Problem 120b
- Problem 120ci
- Problem 120cii
- Problem 120ciii
- Problem 121ai
- Problem 121aii
- Problem 121aiii
- Problem 121b
- Problem 121c
- Problem 121d
- Problem 122a
- Problem 122b
- Problem 122ci
- Problem 122cii
- Problem 122ciii
- Problem 122d
- Problem 123a
- Problem 123b
- Problem 123ci
- Problem 123cii
- Problem 123ciii
- Problem 123d
- Problem 123e
- Problem 123f
- Problem 124a
- Problem 124b
- Problem 124ci
- Problem 124cii
- Problem 124ciii
- Problem 124d
- Problem 125
- Problem 126
- Problem 127
- Problem 128
- Problem 129
- Problem 130a
- Problem 130b
- Problem 130c
- Problem 130d
- Problem 130e
- Problem 130f
- Problem 130g
- Problem 131a
- Problem 131b
- Problem 131c
- Problem 131d
- Problem 132a
- Problem 132b
- Problem 132c
- Problem 133
- Problem 134