Chapter 9.2, Problem 58E

To determine

To find: The condition that is not appropriate to perform the significant test for an unknown proportion.

Answer to Problem 58E

Normality assumption of population is not required.

Explanation of Solution

Given:

Assumptions for significant test for unknown proportion are required to find out.

Following are the main conditions for unknown population proportion test:

1. Data must be random.
2. Values must be independent of each other.
3. Following condition must be satisfied $np>5\text{ or }n\left(1-p\right)>10$ .
4. Sample size must be no more than the 10% of the population.

Since, normality assumption is not required. It could be said that the correct option is (c).