#1 & #2 Chrome File Edit View History Bookmarks People Window Help Take Test: Ex

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#1 & #2

Chrome File Edit View History Bookmarks People Window Help Take Test: Exam 3: Chapters( D statecraft C a Secure https/umassd.umassoniline net/webapps/assessment/take/launch isp?course asse QUESTION 1 As the sample size decreases, the a. population rnean increases b, standard error of the mean increases c. standard error of the mean decreases O d. standard deviation of the population decreases QUESTION 2 The r value for a 80% confidence interval estimation of a sample size of 10 is Oa 0.879 O b, 0.883 c. 1.372 d. 1.383 QUESTION 3 The p-value is a probability that measures the support (or lack of support) for the

Explanation / Answer

1.
As the sample size decreases the standard error of the mean decreases. Because standard error = sigma/sqrt(n)
Here we have sample size in denominator.

2.
t-value = =T.INV(0.1,9)
where 9 is the degrees of freedom
t-value = 1.383 (Option D)

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