Question

小熊🐻

不知道怎麼用顯著性水平來進行檢驗

1.
A sample of 100 students in a high school have a sample mean score of 505 on the
English portion of the SATs. If the sample standard deviation is 110, test the
hypothesis that the high school's mean SAT score is 480 against the alternative
hypothesis that the school's mean SAT score is greater than 480, at the 0.05 level
of significance.