Find the Raw Score of a Student

Find the Raw Score of a Student

A study of 100 students found out that they have a mean achievement in the biology of 2.73 with a standard deviation of 0.14.

(a) Find the raw score of a student whose z score is 3.00.
(b) If the study is set for 90% confidence, state the confidence interval for the mean attitude rating of the students.

Asked by: Akwaji Weber on May 13, 2019.

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