Given a random variable that has a t distribution with the specified degrees of freedom, in each of the following cases what percentage of the time will its value fall in the indicated region?
a. 15 degrees of freedom, between -2.131 and 2.131
b. 19 degrees of freedom, between -2.539 and 2.539
c. 23 degrees of freedom, between -1.319 and 1.319
d. 10 degrees of freedom, between -3.169 and 3.169
Correct Answer:
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b. ...
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