(Answered) How do i get the formula for the follow ifnbspassuming that

Statistics

How do I get the formula for the follow if assuming that both populations are normally? distributed, construct a 90?% confidence interval about μ1-μ2. (μ1 represents the mean of the experimental group and μ2 represents the mean of the control?group.)

Experimental Control

n 29 22

x 49.5 49.1

s 6.3 11.7

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