THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Independent random sampling from two normally distributed populations gives the following results:
n x = 55,
= 520,σ x = 30,n y = 45,
= 482,and σ y = 24
-Find the margin of error for a 98% confidence interval for the difference in the means of the two populations.
A)8.50
B)19.86
C)15.77
D)12.58

Question

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Independent random sampling from two normally distributed populations gives the following results:
n x = 55,  
= 520,σ x = 30,n y = 45,  
= 482,and σ y = 24
-Find the margin of error for a 98% confidence interval for the difference in the means of the two populations.
A)8.50 
B)19.86 
C)15.77 
D)12.58

Quizplus · Accepted Answer

The Answer of THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Independent random sampling from two normally distributed populations gives the following results:
n x = 55,  
= 520,σ x = 30,n y = 45,  
= 482,and σ y = 24
-Find the margin of error for a 98% confidence interval for the difference in the means of the two populations.
A)8.50 
B)19.86 
C)15.77 
D)12.58