Question: In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample

In One Sample Proportion test, it is important to convert the sample proportion to a z-score first. In this example, we selected a random sample of size 140 from a pool of university students and asked whether they use the university gym on a regular basis. Ninety-five replied yes. Assuming that the population proportion under the null hypothesis is 50%, what is the z-score for the sample proportion?

2.63

3.38

4.23

3.27

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