Solve for x. Round your answer to the nearest tenth. Will mark brain list !
1 answer:
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Answer:
54.56
Step-by-step explanation:
Given:
Mean, u = 48
Standard deviation, = 4
Test score = 5%
Required:
Find the raw score, X.
Having a test score of 5% means the Zscore has to correspond to 95%, ie, 1 - 0.05 = 0.95.
Thus,
To get X, use the formula:
= 48 + (4 * 1.64)
= 48 + 6.56
= 54.56
The anxiety test score that would put someone in the top 5% is 54.56