PERFORMANCE YET TO ACHIEVE MINIMUM STANDARD MEETS STANDARD EXCEEDS STANDARD Criteria Not Attempted Needs Improvement Satisfactory Good Very Good Exemplary Analysis (Marks: 35%) GLO1 GLO3 Does not use...

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Answered Same DayMar 31, 2021MIS771Deakin University

Answer To: PERFORMANCE YET TO ACHIEVE MINIMUM STANDARD MEETS STANDARD EXCEEDS STANDARD Criteria Not Attempted...

Pooja answered on Apr 03 2021
158 Votes
Table of Contents
Introduction    2
Analysis    2
1)    2
2)    3
a)    3
b)    3
3)    4
a)    4
b)    4
c)    5
d)    5
e)    6
4)    7
a)    7
b)    7
Conclusion    8
Appendix    9
2)    9
3)    9
a)    9
b)    10
c)    11
d)    12
e)    13
4)    15
a)    15
b)    15
b)    16
Introduction
I want to analyse the current smart mobile phone usage in Australia. There are 11 variables of concern namely Income, Gender, Age, State, geo-Tribe, Used for Payment, Monthly Bill ($), Percent for Work%, On-line Purchase, Social Media Engagement, Satisfaction with Provider.
Analysis
1)
The table of descriptive statistics for monthly bill is mentioned below.
    Mon
thlyBill ($)
    
    
    Mean
    67.64667
    Standard Error
    2.546184
    Median
    64
    Mode
    50
    Standard Deviation
    31.18426
    Sample Variance
    972.4582
    Kurtosis
    2.820304
    Skewness
    1.052804
    Range
    205
    Minimum
    11
    Maximum
    216
    Sum
    10147
    Count
    150
The average monthly bill is $68 with a standard deviation of 2.5 only. The low value of standard deviation is an indication that average is a reliable measure of Central Tendency. 50% of the users have a monthly bill below $64. The minimum and maximum value for the monthly bill is $11 and $216. The mode value for monthly bill is $50. This indicates many people have dollar 50 as their monthly bill.
The frequency distribution along with the histogram for the monthly bill is given below.
    Row Labels
    Count of MonthlyBill ($)
    0-24
    9
    25-49
    29
    50-74
    62
    75-99
    28
    100-124
    16
    125-149
    4
    150-174
    1
    200-224
    1
    Grand Total
    150
It is visible from the histogram that the distribution of monthly bill is slightly skewed to the right. This implies that there are very few users with high monthly bill value.
2)
a)
The average percentage of smartphones for work-related activities is calculated to be 16.8 to send only.
b)
The pivot table for each category of geo-tribe along with their respective frequency is given below.
    Row Labels
    Count of geoTribe
    Achievers
    30
    Boomers
    6
    Crusaders
    32
    Debtstars
    4
    Fortunats
    2
    Grey Power
    3
    Independents
    25
    Rokafella
    4
    Struggleville
    7
    Suburban Splendour
    31
    True Blue
    5
    Twixters
    1
    Grand Total
    150
The relative frequency is calculated by dividing frequency with total number of observations.
    Geo tribe
    Fi
    RfI
    Achievers
    30
    20%
    Boomers
    6
    4%
    Crusaders
    32
    21%
    Debtstars
    4
    3%
    Fortunats
    2
    1%
    Grey Power
    3
    2%
    Independents
    25
    17%
    Rokafella
    4
    3%
    Struggleville
    7
    5%
    Suburban Splendour
    31
    21%
    True Blue
    5
    3%
    Twixters
    1
    1%
The proportion of Smartphone users classified as geo tribe ‘Crusaders’ is 32/150 = 21.3%. Crusaders type of geo tribe has the highest frequency. This is followed by Suburban Splendour, Achievers and Independents with proportion of 21%, 20%, and 17%.
3)
a)
The null hypothesis, the average monthly bill is equal to $72.
An alternative hypothesis, the average monthly bill is less than $72.
With (t= -1.7087, p<5%), I reject the null hypothesis and 5% level of significance. And conclude that the average monthly bill is less than $72.
I am 95% confident that estimated population mean monthly bill lie in the interval ($63, $73).
b)
Null hypothesis, ho: proportion of smartphone users who are either ‘Very Satisfied’ or ‘Moderately Satisfied’ with their service provider is less than or equal to 75%. P <= 75%
Alternative hypothesis, h1: proportion of smartphone users who are either ‘Very Satisfied’ or ‘Moderately Satisfied’ with their service provider is greater than 75%. P > 75%
With z = -1.79, p>5%, I fail to reject the null hypothesis and conclude that proportion of smartphone users who are either ‘Very Satisfied’ or ‘Moderately Satisfied’ with their service provider is less than or equal to 75%. P <= 75%.
Hence the statement of last year that 3 out of 4 Smartphone users are either ‘Very Satisfied’ or ‘Moderately Satisfied’ with their service provider is still valid.
I am 95% confident that estimated population proportion smartphone users who are either ‘Very Satisfied’ or ‘Moderately Satisfied’ lie in the interval (61%, 76%).
c)
The bar chart for the relationship between gender and Satisfaction With Provider is given below.
The number of users who are satisfied with provider is noticeable. There are more female users who are moderately satisfied with provider in comparison to male users. There are more male users who are highly satisfied with provider in comparison to female users.
Null hypothesis, ho: there a difference in the level of satisfaction between male and female users.
Alternative hypothesis, h1: there is no difference in the level of satisfaction between male and female users.
With (chisq = 4.27, p >5%), I fail to reject null hypothesis and conclude that there is no difference in the level of satisfaction between male and female users.
d)
The bar chart for average monthly bill between smartphone as a not payment device and as a payment device is given below.
The average monthly bill for smartphone as no payment device is 59.39$. This is less comparison to payment device for which the average Is 70.25$.
Null hypothesis, ho: there is no significant difference in the average monthly bill between smartphone as a not payment device and as a payment device.
Alternative hypothesis, h1: the average monthly bill for smartphone as no payment device is less comparison to payment device.
With t=-1.9, p<5%, I reject the null hypothesis at 5% level of significance and conclude that the average monthly bill for smartphone as no payment device is less comparison to payment device.
I am 95% confident that estimated population mean difference in the average monthly bill of no payment device and payment device smart-phone user lie in the interval (-22,27, 0.55).
e)
The pie chart for the proportion of users who use Smartphones for online purchases between highly active in social media and moderately active in social media is given below.
The proportion of users who use Smartphones for online purchases...
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