Student Puzzle Corner
Deadline: November 1, 2022. Student members of IMS are invited to submit solutions to bulletin@imstat.org (with subject “Student Puzzle Corner”). The names of student members who submit correct solutions to either or both of these puzzles, and the answer, will be published in the issue following the deadline. The Puzzle …
Deadline September 15, 2022.
Student Puzzle Editor Anirban DasGupta poses what he calls, “an exercise in merriment, on basic statistical inference”:
Your friend is thinking of a two-digit positive integer $N$ consisting of two distinct nonzero digits. The friend won’t tell you what $N$ is, but will give truthful answers…
Student members of IMS are invited to submit solutions to bulletin@imstat.org (with subject “Student Puzzle Corner”). The names of student members who submit correct solutions, and the answer, will be published in the issue following the deadline. The Puzzle Editor is Anirban DasGupta. His decision is final.
Student Puzzle Editor …
Student Puzzle Editor Anirban DasGupta returns to consideration of statistical problems in this issue. The problem falls in the class of irregular problems. He says, “Certainly all of you have seen inference problems about uniform distributions with one or more unknown endpoints. That is one of the simplest irregular inference …
Guest puzzler Stanislav Volkov, Centre for Mathematical Sciences at Lund University, sets a puzzle about a speeding random walk:
For n = 1, 2, … let Xn = ±n with equal probabilities and assume that Xns are independent. Define a “speeding” random walk by S0 = 0 and Sn =…