Construct a Confidence Interval About the Slope of the Least $95 \%$

question 52

Multiple Choice

Construct a Confidence Interval about the Slope of the Least -squares Regression Model
-Construct a $95 \%$ confidence interval about the slope of the true least-squares regression line, for the data below, given that $\hat { y } = - 2.5 x$ .
$\begin{array}{c|c|c|c|c|}\mathrm{x} & -1 & -2 & -3 & -4 \\\hline \mathrm{y} & 2 & 6 & 7 & 10\end{array}$

• A) \(( - 4.165 , - 0.835 )\)
• B) \(( - 6.226,1.226 )\)
• C) \(( - 3.630 , - 1.370 )\)
• D) \(( - 3.731 , - 1.269 )\)

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Definitions:

Voucher System

A set of procedures for authorizing and recording liabilities and cash payments.

Internal Control

Procedures and policies implemented by a company to safeguard its assets, ensure accurate financial reporting, and promote operational efficiency.

Cash Payments

Transactions in which payment for goods or services is made with cash at the time of purchase.

Voucher

A special form for recording relevant data about a liability and the details of its payment.