The principal of a high school randomly selected 30 students to take a math test.Of the 30 students who wrote the test,19 scored more than 75%,4 scored exactly 75%,and 7 scored below 75%.Perform a sign test to determine if the median score is greater than 50% using a 1% level of significance.

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The Answer of The principal of a high school randomly selected 30 students to take a math test.Of the 30 students who wrote the test,19 scored more than 75%,4 scored exactly 75%,and 7 scored below 75%.Perform a sign test to determine if the median score is greater than 50% using a 1% level of significance.

The Principal of a High School Randomly Selected 30 Students