Construct a 95% Confidence Interval For $\mathrm { p } _ { 1 } - \mathrm { p } _ { 2 }$

question 19

Multiple Choice

Construct a 95% confidence interval for $\mathrm { p } _ { 1 } - \mathrm { p } _ { 2 }$ The sample statistics listed below are from independent samples.
Sample statistics: $\mathrm { n } _ { 1 } = 50 , \mathrm { x } _ { 1 } = 35 , \text { and } \mathrm { n } _ { 2 } = 60 , \mathrm { x } _ { 2 } = 40$

• A) (-0.141,0.208)
• B) (-0.871,0.872)
• C) (-1.341,1.781)
• D) (-2.391,3.112)

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