An economics instructor observed that the marks in his Money and Banking courseare normally distributed. He observed that the average was 73% with a standarddeviation of 12% on the final exams in his day classes. His evening classes average77% with a standard deviation of 10%. What is the probability that the mean mark offour randomly selected students from a day class is greater than the average mark offour randomly selected students from an evening class?Do NOT use EXCELa) 0.6950b) 0.4050c) 0.3050d) None of the answers are correcte) 0.5050

here given, marks in days and evening class is normally distributed so here sampling distribution…

Answered: 77% with a standard deviation of 10%.…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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77% with a standard deviation of 10%. What is the probability that the mean mark of four randomly selected students from a day class is greater than the average mark of four randomly selected students from an evening class?