Asurvey of nonprofit organizations showed that online fundraising has increased in the past year. based on a random sample of 55 nonprofits, the mean one-time gift donation in the past year was $75, with a standard deviation of $9.
a. construct a 95% confidence interval estimate for the population mean one-time gift donation.
b. interpret the interval constructed in a.
p. s: how do i calculate the t-value in this question?

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.