Find confidence interval-populations normally distributed
Solve the below:
Q: Construct a 95% confidence interval to estimate μ1- μ2 by using the following data. Assume the populations are normally distributed.
Sample 1
Sample 2
x‾1 =
74.6
x‾2 =
70.9
s12 =
10.5
s22 =
11.4
n1=
18
n2 =
19
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