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.
a. The average age a person registers to vote in Australia is greater than 20 years.
b. A minority of office workers purchase their morning coffee.
c. The average number of hours spent on a computer per day.
d. 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.

Question

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The Answer of 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.
a. The average age a person registers to vote in Australia is greater than 20 years.
b. A minority of office workers purchase their morning coffee.
c. The average number of hours spent on a computer per day.
d. 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.

For Each of the Following Statements, State the Population Parameter