Five Years Ago,a Company Found That 8% of Its Employees

Five years ago,a company found that 8% of its employees commuted to work by car.A survey investigates whether the current proportion of employees who commute by car to work is higher than it was five years ago.A test on employee commuting by car was done on a random sample of 1000 employees,and found car commuting to be 12%.State the critical value required to perform an appropriate hypothesis test using α = 0.001.

A) 1.96
B) 2.326
C) 3.09
D) 3.29
E) 2.576

Correct Answer:

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