A group of students in Sultan Qaboos University has done a survey about the monthly expenditure of students. They claimed that the average expenditure of a student is OR 93. To test the claim, a...

A group of students in Sultan Qaboos University has done a survey about the monthly expenditure of students. They claimed that the average expenditure of a student is OR 93. To test the claim, a researcher selects a sample of 32 students and finds that the average expenditure is OR 91.75. The standard deviation of the population is OR 3.14. At α=0.05, is there enough evidence to reject the claim? [Write all the necessary steps with an analysis of your result]