Independent Random Samples of Are Taken from Each of Two $\bar { x } _ { 1 }$

question 139

Multiple Choice

Independent random samples of are taken from each of two normally distributed populations.The relevant sample statistics are n₁ = 10,n₂ = 8, $\bar { x } _ { 1 }$
= 50, $\bar { x } _ { 2 }$
= 42,s₁= 5,and s₂ = 7.If we assume the population variances are equal,give a 95% confidence for $\mu _ { 1 } - \mu _ { 2 }$
)

• A)[2.01,13.99]
• B)[1.08,14.91]
• C)[3.51,12.49]
• D)[2.56,13.44]
• E)[4.62,11.38]

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A financial plan that estimates the anticipated selling expenses for a period, including costs related to sales personnel, advertising, and marketing activities.

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