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Calculate a confidence interval for unknown population

Assignment Help Applied Statistics
Reference no: EM13731544

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

Reference no: EM13731544

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