4. A college instructor gave identical tests to two randomlysampled groups of 50 students. One group took the teston paper and the other took it online. Those who took thetest on paper had an average score of 75.0 with a standarddeviation of 12.5. those who took the test online had anaverage score of 78.0 with a standard deviation of 14.0.can you conclude that the mean scores differ betweenonline and paper tests?

From the provided information, n1=50x1=75.0s1=12.5n2=50x2=78.0s2=14.0

Answered: A college instructor gave identical…

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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