STAT 200 FINAL EXAM 1 (STAT200)

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STAT 200 FINAL EXAM 1 ; Latest Complete Solutions with shown working, University Of Maryland - University College.

STAT 200 FINAL EXAM 1 ; Latest Complete Solutions with shown working, University Of Maryland - University College.
Exam (elaborations) • 18 pages • 2021

STAT200 FINAL EXAM STAT200 FINAL EXAM 1. True or False. Justify for full credit. (a) If the variance of a data set is zero, then all the observations in this data set are zero. (b) If P(A) = 0.4 , P(B) = 0.5, and A and B are disjoint, then P(A AND B) = 0.9. (c) Assume X follows a continuous distribution which is symmetric about 0. If , then . (d) A 95% confidence interval is wider than a 90% confidence interval of the same parameter. (e) In a right-tailed test, the value of the test statistic is...