For each of the following statements, state the population parameter of interest, state the appropriate null and alternative hypotheses and indicate whether the appropriate test will be a two-tailed, a left tailed or a right tailed test.i. The average age a person registers to vote in Australia is greater than 20 years.

ii.The majority of students in a particular university course who attend lectures has changed from 75%, since lecture recordings have become freely available to students.

iii.A typical high school student in Melbourne spends more than $50 a week on mobile phone calls