Asked by Angela Scamardella on Jul 05, 2024
Verified
A study compares the means of two groups, each having N = 10. If the standard deviations in the two groups are 3.00 and 5.00, what is the value for the standard error of the difference 
?
A) .89
B) 1.84
C) 3.40
D) 8.00
Standard Deviations
A measure of the amount of variation or dispersion of a set of values.
Groups
Groups refer to sets of subjects or items that are categorized together based on specific characteristics or treatments in an experiment or study.
- Compute the standard deviation of the discrepancy between two sample averages.
Verified Answer
ZK
Zybrea KnightJul 05, 2024
Final Answer :
B
Explanation :
The formula for standard error of the difference is:
SE = sqrt((s1^2 / N1) + (s2^2 / N2))
SE = sqrt((3^2 / 10) + (5^2 / 10))
SE = sqrt(9/10 + 25/10)
SE = sqrt(34/10)
SE = 1.84
SE = sqrt((s1^2 / N1) + (s2^2 / N2))
SE = sqrt((3^2 / 10) + (5^2 / 10))
SE = sqrt(9/10 + 25/10)
SE = sqrt(34/10)
SE = 1.84
Learning Objectives
- Compute the standard deviation of the discrepancy between two sample averages.
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