THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 26

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Independent random sampling from two normally distributed populations gives the following results:
n_x = 64,
= 441,σ_x = 20,n_y = 36,
= 361,and σ_y = 25
-Find the margin of error for a 90% confidence interval for the difference in the means of the two populations.

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