Two Independent Simple Random Samples Are Taken to Test the Difference

question 40

Multiple Choice

Two independent simple random samples are taken to test the difference between the means of two populations whose standard deviations are not known, but are assumed to be equal.The sample sizes are n₁ = 25 and n₂ = 35.The correct distribution to use is the

• A) t distribution with 61 degrees of freedom.
• B) t distribution with 60 degrees of freedom.
• C) t distribution with 59 degrees of freedom.
• D) t distribution with 58 degrees of freedom.

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