On a recent quiz, the class mean was 74 with a standard deviation of 4.6. Calculate the z-score (to 2 decimal places) for a person who received score of 80. z-score: Is this unusual? O Not Unusual O Unusual

On a recent quiz, the class mean was 74 with a standard deviation of 4.6. Calculate the z-score (to 2 decimal places) for a person who received score of 80. z-score: Is this unusual? O Not Unusual O Unusual

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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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

On a recent quiz, the class mean was 74 with a standard deviation of 4.6. Calculate the z-score (to 2
decimal places) for a person who received score of 80.
z-score:
Is this unusual?
O Not Unusual
O Unusual

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