What is the margin of error for a sample statistic for a population with a standard deviation of 5.75?
2 answers:
Answer:
Margin of error =z-score value for chosen confidence level×population standard deviation
Assuming a 95% confidence level , then
z=1.96
standard deviation=5.75
Margin of error= 1.96×5.75=11.27
Answer:
Step-by-step explanation:
Given that there is a sample statistic for a population. Population std deviation sigma is given as 5.75.
Margin of error = z critical value * std error
For standard error we must know the sample size n.
Std error = 
Margin of error = Z critical * std error =
for 95%
=
for 99%
Z critical = 1.96 for 95% and 2.58 for 99%
Hence margin of error =
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