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Komok [63]
3 years ago
7

What is the margin of error for a sample statistic for a population with a standard deviation of 7.75?

Mathematics
1 answer:
3241004551 [841]3 years ago
6 0

Answer:

Margin of Error  = 1.96 \times 7.75 = 15.19

Step-by-step explanation:

i) Margin of Error of a population with a standard deviation of 7.75?

ii) Let us assume a two tailed test with a 95% confidence interval

iii) Z_{\frac{\alpha }{2} }  = Z_{\frac{\ 0.05 }{2} } = Z_{0.025} = 1.96

iv) therefore Margin of Error  = 1.96 \times 7.75 = 15.19

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