Provide an Appropriate Response $\$ 686.75$ With a Standard Deviation Of $\$ 256.20$

question 27

Multiple Choice

Provide an appropriate response.
-A local bank needs information concerning the savings account balances of its customers. A random sample of 15 accounts was checked. The mean balance was $\$ 686.75$ with a standard deviation of $\$ 256.20$ . Find a $98 \%$ confidence interval for the true mean. Assume that the account balances are normally distributed.

• A) \(( \$ 513.17 , \$ 860.33 )\)
• B) \(( \$ 238.23 , \$ 326.41 )\)
• C) \(( \$ 326.21 , \$ 437.90 )\)
• D) \(( \$ 487.31 , \$ 563.80 )\)

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Definitions:

Intermittent Reinforcement

A conditioning schedule where reinforcements are given on a partial or unpredictable basis, significantly affecting learning and behavior persistence.

Continuous Reinforcement

Continuous reinforcement is a learning strategy where a desired behavior is rewarded every time it occurs, leading to quicker learning of the behavior.

Observable Behavior

Actions or conduct that can be seen and measured externally, as opposed to thoughts or feelings that cannot be directly observed.

Desirable

Qualities or features that are attractive or sought-after in various contexts, such as products, traits, or outcomes.