Independent samples from two different populations yield the following data. $\bar { x } 1 = 677 , \bar { x } 2 = 211$, $\mathrm { s } _ { 1 } = 30 , \mathrm {~s} _ { 2 } = 30$. The sample size is 245 for both samples. Find the $80 \%$ confidence interval for $\mu _ { 1 } - \mu _ { 2 }$
A) $460

Question

Independent samples from two different populations yield the following data. $\bar { x } 1 = 677 , \bar { x } 2 = 211$, $\mathrm { s } _ { 1 } = 30 , \mathrm {~s} _ { 2 } = 30$. The sample size is 245 for both samples. Find the $80 \%$ confidence interval for $\mu _ { 1 } - \mu _ { 2 }$
A) $460 < \mu _ { 1 } - \mu _ { 2 } < 472$
B) $466 < \mu _ { 1 } - \mu _ { 2 } < 466$
C) $463 < \mu _ { 1 } - \mu _ { 2 } < 469$
D) $462 < \mu _ { 1 } - \mu _ { 2 } < 470$

Quizplus · Accepted Answer

The Answer of Independent samples from two different populations yield the following data. $\bar { x } 1 = 677 , \bar { x } 2 = 211$, $\mathrm { s } _ { 1 } = 30 , \mathrm {~s} _ { 2 } = 30$. The sample size is 245 for both samples. Find the $80 \%$ confidence interval for $\mu _ { 1 } - \mu _ { 2 }$
A) $460 < \mu _ { 1 } - \mu _ { 2 } < 472$
B) $466 < \mu _ { 1 } - \mu _ { 2 } < 466$
C) $463 < \mu _ { 1 } - \mu _ { 2 } < 469$
D) $462 < \mu _ { 1 } - \mu _ { 2 } < 470$

Independent Samples from Two Different Populations Yield the Following Data xˉ1=677,xˉ2=211\bar { x } 1 = 677 , \bar { x } 2 = 211xˉ1=677,xˉ2=211

Independent Samples from Two Different Populations Yield the Following Data $\bar { x } 1 = 677 , \bar { x } 2 = 211$