Is memory ability before a meal better than after a meal? Ten people were given memory tests before their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability.Before a Meal63925467765486698571After a Meal54804466725189648365Assume a Normal distribution. What can be concluded at the the αα = 0.10 level of significance?The test statistic T = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)

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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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Is memory ability before a meal better than after a meal? Ten people were given memory tests before their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability.

Before a Meal	63	92	54	67	76	54	86	69	85	71
After a Meal	54	80	44	66	72	51	89	64	83	65

Assume a Normal distribution. What can be concluded at the the αα = 0.10 level of significance?

The test statistic T = (please show your answer to 3 decimal places.)

The p-value = (Please show your answer to 4 decimal places.)

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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