Problem: Desiree heard that the average grade in Practical Research of her class is at least 88%. She was not convinced by this and so decided to used hypothesis testing to check if this claim was true. She Got a random sample of 10 classmates who gave their grades in Practical research as follows: 90, 93, 85, 77, 88, 80, 78, 83, 95, 90. Assume that the distribution of grades is normal. Based on this sample data, what would Desiree's conclusion to be the average grade in Practical Research of her class?

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