7
QuizMultiple Choice

Unit Test — Unit test

Question 7 • Probability and Statistics with Applications Honors Sem-2-FL-1210300 (2024-2025)

Hal and Jose are avid crossword puzzle solvers. Hal solves 48% of his crossword puzzles in under 30 minutes, while Jose solves 39% of his crossword puzzles in under 30 minutes. Suppose that Hal solves 22 crossword puzzles and Jose solves 26 crossword puzzles. Because nJpJ, nJ (1–pJ), and nH (1-pH) are all greater than 10, the Normal condition is met. Let H = the proportion of Hal’s crossword puzzles solved in under 30 minutes and J = the proportion of Jose’s crossword puzzles solved in under 30 minutes. What is the probability that Jose’s proportion of crossword puzzles solved in under 30 minutes is greater than Hal’s?Find the z-table here.

Answer
A
0.265
B
0.449
C
0.459
D
0.735
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