01 Using Dataset 1, first provide both numerical summary and graphical display that

easily shows the proportion of each lodgement method.

Then, construct a 95% confidence interval of the population proportion of Selfpreparer lodgement method.

Finally, answer the research question using the confidence interval.

02Using Dataset 1, first describe the salary amount distribution of Australian taxpayers

in 2013-2014. You need to provide numerical summary (sample size, mean, standard

deviation and median) as well as graphical display which shows any outliers.

Then perform a suitable hypothesis test to answer the research question above at

5% level of significance.

03Using Dataset 1, , first filter the total income to include only the income between

$75,000 to $80,000 (inclusive). Then provide the numerical summary for the total

deduction grouped by different lodgement method. You also need to provide

graphical display which shows any outliers.

Then, perform a suitable hypothesis test to answer the research question above.

Use a 5% significance level.

04Using Dataset 1, first filter the data to include only self-prepare lodgement method,

then describe the relationship between total income amount and total deduction

amount using a suitable graph.

Then, perform a regression analysis and provide the numerical summary.

Finally, interpret the correlation coefficient, the coefficient of determination and the

relevant p-values and use them to answer the research question.

05Using Dataset 2, describe the relationship between the gender of international

students and whether they would use a tax agent. You need to provide both

numerical summary and graphical display.

Then, perform a suitable hypothesis test to answer the research question above.

Use a 5% significance level.

excel file cant be uploaded otherwise i would have shared it.

please use google drive link below to access the excel file with all sections for dataset 1 and dataset 2. answer can be given in new excel sheet

or on course hero no issues.

https://drive.google.com/file/d/1Tae8oIpqlU5hNAwXdGbs9_PUCf6lHuOL/view?usp=sharing