Mean typing speed is 90 wpm, with a standard deviation of 18 wpm. Find the probability a randomly selected sample of n = 49 typists has a mean speed of more than 91 wpm. Round your result to 4 decimal places. 0.0258 None of these O 0.2391 O 0.3741 0.3487

Mean typing speed is 90 wpm, with a standard deviation of 18 wpm. Find the probability a randomly selected sample of n = 49 typists has a mean speed of more than 91 wpm. Round your result to 4 decimal places. 0.0258 None of these O 0.2391 O 0.3741 0.3487

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

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Question

Mean typing speed is 90 wpm, with a standard deviation of 18 wpm. Find the probability a randomly
selected sample of n = 49 typists has a mean speed of more than 91 wpm. Round your result to 4
decimal places.
0.0258
None of these
0.2391
0.3741
0.3487

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