According to the 2016 Consumer Expenditure Survey, Americans spend an average of $1,124 on cellular phone service annually (U.S. Bureau of Labor Statistics website). Suppose that we wish to determine if there are differences in cellular phone expenditur group. Therefore, samples of 10 consumers were selected for three age groups (18-34, 35-44, 45 and older). The annual expenditure for each person in the sample is provided in the table below. Click on the datafile logo to reference the data. DATA file 35-44 969 434 18-34 1,355 115 1,456 2,045 1,621 994 1,937 1,200 1,567 1,390 a. Compute the mean, variance, and standard deviation for each of these three samples. Round your answers to one decimal place. 18-34 35-44 45+ 1,792 1,500 1,277 1,056 1,922 1,350 1,586 1,415 45 and Older 1,135 956 400 1,374 1,244 825 763 1,192 1,305 1,510 Mean Variance Standard Deviation b. What observations can be made based on these data? The age group that spends the least amount on cellular phone service is - Select your answer and the age group that spends the biggest amount on cellular phone service is - Select your answer -
According to the 2016 Consumer Expenditure Survey, Americans spend an average of $1,124 on cellular phone service annually (U.S. Bureau of Labor Statistics website). Suppose that we wish to determine if there are differences in cellular phone expenditur group. Therefore, samples of 10 consumers were selected for three age groups (18-34, 35-44, 45 and older). The annual expenditure for each person in the sample is provided in the table below. Click on the datafile logo to reference the data. DATA file 35-44 969 434 18-34 1,355 115 1,456 2,045 1,621 994 1,937 1,200 1,567 1,390 a. Compute the mean, variance, and standard deviation for each of these three samples. Round your answers to one decimal place. 18-34 35-44 45+ 1,792 1,500 1,277 1,056 1,922 1,350 1,586 1,415 45 and Older 1,135 956 400 1,374 1,244 825 763 1,192 1,305 1,510 Mean Variance Standard Deviation b. What observations can be made based on these data? The age group that spends the least amount on cellular phone service is - Select your answer and the age group that spends the biggest amount on cellular phone service is - Select your answer -
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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![According to the 2016 Consumer Expenditure Survey, Americans spend an average of $1,124 on cellular phone service annually (U.S. Bureau of Labor Statistics website). Suppose that we wish to determine if there are differences in cellular phone expenditures by age
group. Therefore, samples of 10 consumers were selected for three age groups (1834, 35- 44, 45 and older). The annual expenditure for each person in the sample is provided in the table below.
Click on the datafile logo to reference the data.
DATA file
35-44
969
434
1,792
1,500
1,277
1,056
1,922
1,350
18 - 34
1,355
115
1,456
2,045
1,621
994
1,937
1,200
1,567
1,390
a. Compute the mean, variance, and standard deviation for each of these three samples. Round your answers to one decimal place.
18-34
35-44
45+
1,586
1,415
45 and Older
1,135
956
400
1,374
1,244
825
763
1,192
1,305
1,510
Mean
=
Variance
Standard Deviation
b. What observations can be made based on these data?
The age group that spends the least amount on cellular phone service is - Select your answer and the age group that spends the biggest amount on cellular phone service is
Select your answer - V](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F375a8daa-a061-40df-aa13-f324a3b06fab%2F900fc854-1c19-48c5-a189-980525462f7a%2Fslynnj9_processed.png&w=3840&q=75)
Transcribed Image Text:According to the 2016 Consumer Expenditure Survey, Americans spend an average of $1,124 on cellular phone service annually (U.S. Bureau of Labor Statistics website). Suppose that we wish to determine if there are differences in cellular phone expenditures by age
group. Therefore, samples of 10 consumers were selected for three age groups (1834, 35- 44, 45 and older). The annual expenditure for each person in the sample is provided in the table below.
Click on the datafile logo to reference the data.
DATA file
35-44
969
434
1,792
1,500
1,277
1,056
1,922
1,350
18 - 34
1,355
115
1,456
2,045
1,621
994
1,937
1,200
1,567
1,390
a. Compute the mean, variance, and standard deviation for each of these three samples. Round your answers to one decimal place.
18-34
35-44
45+
1,586
1,415
45 and Older
1,135
956
400
1,374
1,244
825
763
1,192
1,305
1,510
Mean
=
Variance
Standard Deviation
b. What observations can be made based on these data?
The age group that spends the least amount on cellular phone service is - Select your answer and the age group that spends the biggest amount on cellular phone service is
Select your answer - V
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VIEWStep 2: Find mean, variance, standard deviation of the age group 18-34
VIEWStep 3: Find mean, variance, standard deviation of the given data for age group 35-44
VIEWStep 4: Find mean, variance, standard deviation of the given data for age group 45 and older
VIEWStep 5: b)decision after observing the standard deviations of 3 age groups
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