Preliminary Data Analyses Indicates That Use of a Paired T-Test $\mathrm { H } _ { 0 } : \mu _ { 1 } = \mu _ { 2 }$

question 74

Essay

Preliminary data analyses indicates that use of a paired t-test is reasonable. Perform the hypothesis test by using eitherthe critical-value approach or the P-value approach as indicated. Assume that the null hypothesis is $\mathrm { H } _ { 0 } : \mu _ { 1 } = \mu _ { 2 }$
-A coach uses a new technique in training middle distance runners. The times, in seconds, for 8 different athletes to run 800 meters before and after this training are shown below. $$\begin{array} { r | r r r r r r r r } \text { Athlete } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } & \text { F } & \text { G } & \text { H } \\ \hline \text { Before } & 117.6 & 110.6 & 109.5 & 112 & 117.6 & 116.8 & 111.3 & 111.8 \\ \hline \text { After } & 118.2 & 109.3 & 107.1 & 112.8 & 115.8 & 116.9 & 107.7 & 107.9 \end{array}$$ At the 5% significance level, do the data provide sufficient evidence that the training helps to improve times for the 800 meters? Use the P-value approach.

Analyze the impact of e-commerce legislation on electronic documents, contracts, and signatures.

Distinguish between contracts that are void and those that are voidable based on the requirements of the Statute of Frauds.

Prepare for electronic business operations by understanding legal prerequisites and best practices.

Understand the concept of expected utility and how it applies to decision-making in uncertain conditions.

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Definitions:

Classically Conditioned

Classically conditioned refers to a learning process in classical conditioning where a neutral stimulus becomes associated with a significant response through repeated pairings with a stimulus that inherently causes that response.

Romantic Comedy

A genre of movies that combines elements of romance and comedy, centering on two people as they navigate romantic entanglements.

Procedural Memory

A type of long-term memory that involves the ability to perform skills, operations, or actions.

Episodic Memory

The type of long-term memory that involves the recollection of specific events, situations, and experiences, including time and place contexts.