Which of the following statements is false? 1) We use on

Ashley Bell 2021-12-13 Answered
Which of the following statements is false?
1) We use one-sample procedures when our samples are equal in size but arent independent
2) Everything else being equal, a confidence interval based on 15 degrees of freedom will be narrower than one based on 10 degrees of freedom.
3) We can pool our estimates of the population variance ifwe want a narrower confidence interval for a given confidence level.
A. None of the above gives the correct response
B. 2 only
C. 1 only
D. 3 only
E. 1 and 2 only
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Expert Answer

Kirsten Davis
Answered 2021-12-14 Author has 27 answers
First question: (1) is wrong because we use paired-t test
(2) is right because when df increases, t distribution becomes light tailed, and approaches to z
(3) No, for 2-sample procedures, on paired-t test requires same size.
E. 1 and 2 only are false

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Janet Young
Answered 2021-12-15 Author has 32 answers
Option E. 1 and 2 only

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