a survey of nonprofit organizations showed that online fundraising increased in the past year. based on a random sample of 53 nonprofit organizations, the mean one-time gift donation in the past year was $75$, with a standard deviation of $9. if you test the null hypothesis at the level of significance, is there evidence that the mean one-time gift donation is greater than $70? interpret the meaning of the p-value in this problem. a. state the null and alternative hypotheses. choose the correct answer below. a. b. c. d. e.