Find a 95 Percent Confidence Interval for µ₁- µ₂,where N₁= $\sigma$

question 65

Multiple Choice

Find a 95 percent confidence interval for µ₁- µ₂,where n₁= 50,n₂ = 75, ₁ = 82, ₂ = 76, $\sigma$ ₁² = 8 and $\sigma$ ₂² = 6.

• A)(5.04 6.96)
• B)(5.53 6.47)
• C)(5.19 6.81)
• D)(5.41 6.59)

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