Use the Confidence Level and Sample Data to Find a Confidence

question 13

Multiple Choice

Use the confidence level and sample data to find a confidence interval for estimating the population µ.
-34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $25.9$ pounds and a standard deviation of $3.8$ pounds. What is the 95 percent confidence interval for the true mean weight, $\mu$ , of all packages received by the parcel service?

• A) \(24.4 < \mu < 27.4\)
• B) \(24.2 < \mu < 27.6\)
• C) \(24.6 < \mu < 27.2\)
• D) \(24.8 < \mu < 27.0\)

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Definitions:

Credit Card Applications

Formal requests submitted by individuals seeking to open a credit card account, requiring financial information to evaluate creditworthiness.

Open-end Credit

A revolving credit line that allows a borrower to spend up to a certain limit, repay it, then borrow again.

Annual Percentage Rate (APR)

The annual rate charged for borrowing or earned through an investment, which reflects the actual yearly cost over the term of a loan.

Grace Period

A set period after a payment due date during which a late fee or other penalty for late payment is waived.