Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers has maintained careful records regarding the time to prepare a return. The mean time to prepare a return is 90 minutes, and the population standard deviation of this distribution is 15 minutes. Suppos 110 returns from this year are selected and analyzed regarding the preparation time. What is the probability that the mean time for the sample of 1 returns for this year is greater than 92? Multiple Choice O Approximately o 0.0876 0.4124 0.0808

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers has maintained careful records regarding the time to
prepare a return. The mean time to prepare a return is 90 minutes, and the population standard deviation of this distribution is 15 minutes. Suppose
110 returns from this year are selected and analyzed regarding the preparation time. What is the probability that the mean time for the sample of 110
returns for this year is greater than 92?
Multiple Choice
Approximately o
0.0876
0.4124
0.0808
Transcribed Image Text:Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers has maintained careful records regarding the time to prepare a return. The mean time to prepare a return is 90 minutes, and the population standard deviation of this distribution is 15 minutes. Suppose 110 returns from this year are selected and analyzed regarding the preparation time. What is the probability that the mean time for the sample of 110 returns for this year is greater than 92? Multiple Choice Approximately o 0.0876 0.4124 0.0808
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