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Author Question: A confidence interval for (1 - 2) is (-5, 8). Which of the following inferences is correct? (Read 71 times)

mynx

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Question 1

Independent random samples of 100 observations each are chosen from two normal populations with the following means and standard deviations.

Population 1Population 2
μ1 = 15μ2 = 13
σ1 = 3σ2 = 2

Find the mean and standard deviation of the sampling distribution of

Question 2

A confidence interval for (μ1 - μ2) is (-5, 8). Which of the following inferences is correct?
◦ no significant difference between means
μ1 < μ2
μ1 > μ2
μ1 = μ2


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Marked as best answer by mynx on Feb 14, 2020

atrochim

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mynx

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Reply 2 on: Feb 14, 2020
Excellent


cpetit11

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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