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12 Nov 2021

Given information

The sample size is 100. The sample mean and sample standard deviation is 23.6 and 7 hours respectively. The population is normally distributed.

Step-by-step explanation

Step 1.

The random variable represents the time required for a person to fill out tax forms while the random variable  represents the sample mean of the time required for a person to fill out tax forms.

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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