Suppose You Will Perform a Test to Determine Whether There $\alpha$

question 139

Multiple Choice

Suppose you will perform a test to determine whether there is sufficient evidence to support a claim of a linear
correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance
level $\alpha$
-Eight pairs of data yield $\mathrm { r } = 0.742$ and the regression equation $\hat { y } = 55.8 + 2.79 x .$ Also, $\bar { y } = 71.125$ . What is the best predicted value of $y$ for $x = 8$ ?

• A) \(78.12\)
• B) \(449.19\)
• C) \(57.80\)
• D) \(71.13\)

---

Definitions:

Retail Trade

Retail trade involves the sale of goods or merchandise to end consumers, typically in small quantities, from a fixed location such as a store or online platform.

Transportation

The movement of people, goods, or services from one location to another, involving a variety of modes such as road, rail, air, and sea.

Agriculture

The practice of cultivating soil, growing crops, and raising livestock for food, fiber, and other products.

Mining

The process of extracting minerals or other geological materials from the earth, typically from an ore body, lode, vein, seam, or reef.