[Q7e: Only answer if you ABSOLUTELY know how to solve AND the answers match up (

Question

[Q7e: Only answer if you ABSOLUTELY know how to solve AND the answers match up ((tired of getting wrong replies.) So, please make sure you’re really certain. [It’s appreciated.])

Really Explain EACH STEP, including any formulas you used (& how to use the formula), and explain how to compute with a TI-84 preferably/when possible.]

NO JUST POSTING THE ANSWER WITH NO EXPLANATION/ NO CONVINCING EXPLANATION, I WILL ASSUME IT'S WRONG, AS HAS BEEN THE CASE BEFORE. IF YOU'RE THIS TYPE, MOVE ON.

Question

Suppose that a researcher studying the weight of female college athletes wants to predict the weights based on height, measured in inches, the percentage of body fat of an athlete, and age. The researcher calculates the regression equation as (weight) = 3.391*(height) + 0.8*(percent body fat) - 0.769*(age) - 82.174. If a female athlete is 62 inches tall, has a 21 percentage of body fat, and is 18 years old, what is her expected weight?

Question options:

1)

2)

3)

4)

5)

1)

24.795

2)

131.026

3)

We do not know the observations in the data set, so we cannot answer that question.

4)

295.374

5)

213.2

Explanation / Answer

Expected weight for the given values

= 3.391(62) + 0.8(21) - 0.769(18) - 82.174

= 131.026

Option 2 is correct.

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