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Author Question: Determine whether the sample sizes are large enough to conclude that the sampling distributions are ... (Read 17 times)

tfester

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Question 1

We sampled 100 men and 100 women and asked: "Do you think the environment is a major concern?" Of those sampled, 67 women and 53 men responded that they believed it is. For the confidence interval procedure to work properly, what additional assumptions must be satisfied?
◦ Both samples were randomly and independently selected from their respective populations.
◦ Both populations have approximate normal distributions.
◦ The population variances are equal.
◦ All of the above are necessary.

Question 2

Determine whether the sample sizes are large enough to conclude that the sampling distributions are approximately normal.

n1 = 45, n2 = 52,  1 = .3,  2 = .6


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Marked as best answer by tfester on Feb 14, 2020

stillxalice

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tfester

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Reply 2 on: Feb 14, 2020
Great answer, keep it coming :)


patma1981

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Reply 3 on: Yesterday
Excellent

 

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