QUESTION 5 When the standard deviation is 2, the accuracy is 0.2, and alpha is 0.10,...

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QUESTION 5 When the standard deviation is 2, the accuracy is 0.2, and alpha is 0.10,...

QUESTION 5

When the standard deviation is 2, the accuracy is 0.2, and alpha is 0.10, the sample size according to that accuracy is 271.

True

False

math Statistics-And-Probability

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Answer 1

Answer #1

Standard Deviation ,   σ =    2
sampling error ,    E =   0.2

alpha = 0.10
Z value =    Zα/2 =    1.6449

Sample Size,n =    (Z*σ / E)² =   270.5543


So,Sample Size=       271
so, answer is true

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Answer 2

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