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  3. consider the following results for two independent

Consider the following results for two independent random samples taken from two populations. Sample 1: n1 = 40 x?1...

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Basic Math

Consider the following results for two independent randomsamples taken from two populations.

Sample 1:

n1 = 40

x?1 = 13.9

?1 = 2.3

Sample 2:

n2 = 30

x?2 = 11.1

?2 = 3.4

What is the point estimate of the difference between the twopopulation means? (to 1 decimal)

Provide a 90% confidence interval for the difference between thetwo population means (to 2 decimals).

Provide a 95% confidence interval for the difference between thetwo population means (to 2 decimals).

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