QUESTION 1
Calculate a 95% confidence interval for the unknown population mean business age.
QUESTION 2
Test, at the 1% level of significance, whether the average business has more than 15 employees.
QUESTION 3
Test, at the 5% level of significance, whether the average profit in 2014 differs between businesses located in Parramatta CBD or located in Sydney CBD.
[You may assume that the unknown population standard deviations for Parramatta and Sydney businesses are equal]
QUESTION 4
Test, at the 5% level of significance, whether location (Parramatta or Sydney CBD) of the business is related to type of business (privately held, publicly traded or franchise)?
NOTE: The data was randomly created for the sole purpose of this assignment. The data can be assumed to be normally distributed for all continuous variables
Attachment:- Data Sets.pdf