Q1: A report claimed that the average age of students at the UOB was 21.3 years. An inte researcher seemed to suspect this claim. He took a sample of 64 students enrolled this sem at the UOB and found that the of 2.7 years. Do the sample data suggest that the mean age of the UOB students is diferent 21.3? Use the 5 percent significance level to test the above claim. To do the testing. questions from no. 1 to no. 5 showing the full calculations in the boxes provided. mean age of this sample was 22.1 years with a
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