Apply the Chi-Square Test of Independence to Test for an Association

question 19

Multiple Choice

Apply the Chi-Square test of independence to test for an association.
-An online book store wants to determine if there is an association between coupon
Redemption and gender. After a special coupon broadcast to its reward members, the
Following data on coupon redemption at check out were collected. The correct value of
The test statistic is $$\begin{array} { c c | c c | c } & & { \text { Coupon Redeemed? } } \\& & \text { Yes } & \text { No } & \text { Total } \\\hline{ \text { Sex } } & \text { Male } & 66 & 66 & 132 \\& \text { Female } & 125 & 74 & 199 \\\hline & \text { Total } & 191 & 140 & 331\end{array}$$

• A) 2 = 5.339 χ
• B) 2 χ = 8.429
• C) 2 χ = 0.839
• D) 2 = 45.556 χ
• E) None of the above.

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Definitions:

Thyroid Hormones

Thyroid hormones, including thyroxine (T4) and triiodothyronine (T3), are produced by the thyroid gland and are critical for regulating metabolism, growth, and development.

TRH

Thyrotropin-releasing hormone (TRH) is a tripeptide hormone produced in the hypothalamus that stimulates the pituitary gland to release thyroid-stimulating hormone (TSH).

TSH

A hormone from the pituitary gland that controls hormone output from the thyroid gland, known as Thyroid Stimulating Hormone.

Osteoclast Activity

The resorption process of bone tissue by osteoclast cells, which is vital for the growth, repair, and remodeling of bones.