Which of the following would be an appropriate null hypothesis?
A) The population proportion is less than 0.65.
B) The sample proportion is no less than 0.65.
C) The sample proportion is less than 0.65.
D) The population proportion is no less than 0.65.

Question

Quizplus · Accepted Answer

The null hypothesis should always state that there is no difference or no effect, and should be phrased in terms of the population parameter. In this case, the null hypothesis would be that the population proportion is no less than 0.65, meaning there is no difference between the observed sample proportion and the hypothesized value of 0.65. Option D correctly expresses this idea.

Which of the Following Would Be an Appropriate Null Hypothesis