The mean of the sampling distribution of the sample proportion, ,when the sample size n = 100 and the population proportion p = 0.03,is 0.03.

This statement is true. According to the Central Limit Theorem, when the sample size is sufficiently large, the sampling distribution of the sample proportion will be approximately normal with a mean equal to the population proportion. In this case, the population proportion is given as p=0.03, and when the sample size is n=100, the mean of the sampling distribution of the sample proportion will be 0.03.