Use the Following Data for the Next Questions

question 14

Essay

Use the following data for the next questions. Researchers studying sleep loss
followed the length of sleep, in hours, of 10 individuals with insomnia before and
after cognitive behavioral therapy (CBT). Use the Wilcoxon Signed-Ranks Test
with a .05 significance level to test the claim that both samples come from
populations having differences with a median equal to zero.

-Identify the null hypothesis and alternative hypothesis.

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Definitions:

Door-to-Door Transactions

Sales or services provided through direct visitation to a customer's home or business location, typically involving personal interaction.

Green River Ordinance

This type of ordinance protects consumers and aids local firms by making it more difficult for outside competition to enter the market.

Door-to-Door Sales

A direct sales method where salespeople visit potential customers at their homes to sell products or services.

Sales Licenses

Permits required in certain industries or jurisdictions to legally sell products or services.