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Asked Nov 7, 2019
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Use the margin of error, confidence level, and standard deviation o to find the minimum sample size required to estimate
unknown population mean u.
5) Margin of error: $126, confidence level: 99%, o $534
A) 105,268
an
B) 61
C) 120
5)
D) 69
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Use the margin of error, confidence level, and standard deviation o to find the minimum sample size required to estimate unknown population mean u. 5) Margin of error: $126, confidence level: 99%, o $534 A) 105,268 an B) 61 C) 120 5) D) 69

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Expert Answer

Step 1

Given data

Standard deviation = 534

C...

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Significance level = a = 1 - 0.99 = 0.01 Zo.01 Zo.005 -2.57583 NORM.S.INV(0.005)) (From Excel sample size Margin of Error = 126 Margin of error formula is given by Ζα Χ σ E Vn Simplifying the above formula 2 Zo.05 x 534 Ζα Χ σ) 2 2.57583 x 534 2. 119.172 120 n = 126 126

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Hypothesis Testing

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