3. A sample survey on the average total yearly expenditure included 150 students of a certain university. The mean total expendure per student per year for the sample was P3, 000 with a standard...

Extracted text: 3. A sample survey on the average total yearly expenditure included 150 students of a certain university. The mean total expendure per student per year for the sample was P3, 000 with a standard deviation of P500. How likely is it that the students spend an average of P3, 500 per year as claimed by a parent at 0.01 significance level? Но: Н1: a = Zcri = Zcom = comparison Computation: DR: Conclusion: