The options below give information about three different distributions and samples taken from them: I. Population...
The options below give information about three different distributions and samples taken from them:
I. Population approximately normally distributed, population standard deviation known, sample size n=10
II. Population approximately normally distributed, population standard deviation unknown, sample size n=10
III. Population distribution skewed right, population standard deviation unknown, sample size n=50
Which of these three samples could be used to create a confidence interval for the mean of the respective population? You may assume that the population sizes are all greater than 500 and that the samples have been taken randomly.
I and III only
I and II only
I, II, and III
III only
I only
Homework Answers
All I, II and III are correct because confidence interval can be constructed in all such cases.
Option C is correct.
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The options below give information about three different
distributions and samples taken from them:
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2. Fill this table with the appropriate critical values from the normal (z) or Student'st(t) distributions,...
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