Here is the graph, you can match it yourself:
SIMPLIFY THIS EXPRESSION: 2(z + 3) + 3(5 - 3z)
1 answer:
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Answer: A. 0.4899 B. 14
Step-by-step explanation:
If X = random variable
then, the standard deviation of the sampling distribution of X =
A.
GIven:
The standard deviation of the sampling distribution of X =
B. Let n be the sample size,
Hence, the required sample size = 14
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