Sampling Distribution of the Mean: Prof says 10% of his grade will be A's....

[DonQuixote]

Hey guys was wondering how to go about tackling this problem?

A statistics professor announces that 10% of the grades he gives are A's. The results of the final examination indicate that the mean score is 73 and the standard deviation is 6. What minimum score must a student obtain to receive an A?

Many thanks!

 

[Deleted member 4993]

Hey guys was wondering how to go about tackling this problem?

A statistics professor announces that 10% of the grades he gives are A's. The results of the final examination indicate that the mean score is 73 and the standard deviation is 6. What minimum score must a student obtain to receive an A?

Many thanks!

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