The Specific Absorption Rate (SAR) for a cell phone measures the amount of radio frequency (RF) energy absorbed by the user's body when using the handset. Every cell phone emits RF energy. Different phone models have different SAR measures. To receive certification from the Federal Communications Commission (FCC) for sale in the United States, the SAR level for a cell phone must be no more than 1.6 watts per kilogram. Table shows the highest SAR level for a random selection of cell phone models as measured by the FCC. Phone Model SAR Phone Model SAR 1.11 1.36 1.48 1.34 1.43 1.18 1.3 1.3 LG Ally LG AX275 Apple iPhone 4S BlackBerry Pearl 8120 BlackBerry Tour 9630 Cricket TXTM8 HP/Palm Centro 1.09 HTC One V 0.455 1.29 HTC Touch Pro 2 1.41 0.36 Huawei M835 Ideos 0.82 0.52 Kyocera DuraPlus 0.78 1.6 Kyocera K127 Marbl 1.25 1.39 Find a 98% confidence interval for the true (population) mean of the Specific Absorption Rates (SARS) for cell phones. Assume that the population standard deviation is o=0.337. LG Cosmos LG CU515 LG Trax CU575 Motorola Q9h Motorola Razr2 V8 Motorola Razr2 V9 Motorola V195s Nokia 1680 Phone Model Pantech Laser Samsung Character Samsung Epic 4G Touch Samsung M240 1.26 Samsung Messager III SCH-R750 Samsung Nexus S Samsung SGH-A227 SGH-a107 GoPhone Sony W350a T-Mobile Concord SAR 0.74 0.5 0.4 0.867 0.68 0.51 1.13 0.3 1.48 1.38
The Specific Absorption Rate (SAR) for a cell phone measures the amount of radio frequency (RF) energy absorbed by the user's body when using the handset. Every cell phone emits RF energy. Different phone models have different SAR measures. To receive certification from the Federal Communications Commission (FCC) for sale in the United States, the SAR level for a cell phone must be no more than 1.6 watts per kilogram. Table shows the highest SAR level for a random selection of cell phone models as measured by the FCC. Phone Model SAR Phone Model SAR 1.11 1.36 1.48 1.34 1.43 1.18 1.3 1.3 LG Ally LG AX275 Apple iPhone 4S BlackBerry Pearl 8120 BlackBerry Tour 9630 Cricket TXTM8 HP/Palm Centro 1.09 HTC One V 0.455 1.29 HTC Touch Pro 2 1.41 0.36 Huawei M835 Ideos 0.82 0.52 Kyocera DuraPlus 0.78 1.6 Kyocera K127 Marbl 1.25 1.39 Find a 98% confidence interval for the true (population) mean of the Specific Absorption Rates (SARS) for cell phones. Assume that the population standard deviation is o=0.337. LG Cosmos LG CU515 LG Trax CU575 Motorola Q9h Motorola Razr2 V8 Motorola Razr2 V9 Motorola V195s Nokia 1680 Phone Model Pantech Laser Samsung Character Samsung Epic 4G Touch Samsung M240 1.26 Samsung Messager III SCH-R750 Samsung Nexus S Samsung SGH-A227 SGH-a107 GoPhone Sony W350a T-Mobile Concord SAR 0.74 0.5 0.4 0.867 0.68 0.51 1.13 0.3 1.48 1.38
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The Specific Absorption Rate (SAR) for a cell phone measures the amount of radio frequency
(RF) energy absorbed by the user's body when using the handset. Every cell phone emits RF
energy. Different phone models have different SAR measures. To receive certification from
the Federal Communications Commission (FCC) for sale in the United States, the SAR level for
a cell phone must be no more than 1.6 watts per kilogram. Table shows the highest SAR level
for a random selection of cell phone models as measured by the FCC.
Phone Model
SAR
Phone Model
SAR
1.11
1.48
1.43
1.3
Apple iPhone 4S
BlackBerry Pearl 8120
BlackBerry Tour 9630
Cricket TXTM8
HP/Palm Centro
HTC One V
0.455
1.29
HTC Touch Pro 2
1.41
0.36
Huawei M835 Ideos
0.82
0.52
Kyocera DuraPlus
0.78
1.6
Kyocera K127 Marbl
1.25
1.39
Find a 98% confidence interval for the true (population) mean of the Specific Absorption Rates
(SARS) for cell phones. Assume that the population standard deviation is o=0.337.
We estimate with 98% confidence that the true SAR Mean
for the population
of cell phones in the United States is between 0.8809 and
1.1671 watts per kilogram.
1.09
LG Ally
LG AX275
LG Cosmos
LG CU515
LG Trax CU575
Motorola Q9h
Motorola Razr2 V8
Motorola Razr2 V9
Motorola V195s
Nokia 1680
1.36
1.34
1.18
1.3
Phone Model
Pantech Laser
Samsung Character
Samsung Epic 4G Touch
Samsung M240
Samsung Messager III
SCH-R750
1.26
Samsung Nexus S
Samsung SGH-A227
SGH-a107 GoPhone
Sony W350a
T-Mobile Concord
SAR
0.74
0.5
0.4
0.867
0.68
0.51
1.13
0.3
1.48
1.38
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