I just need an explanation with the answer for numbers 5-7. Thanks Assume you ar

Question

I just need an explanation with the answer for numbers 5-7. Thanks

Assume you are studying automobile characteristics. You search for related characteristics of automobiles and then find which of those characteristics most affects the price of an automobile. After you find the variable with the strongest correlation to price, you search for an effective prediction equation. Use the computer outputs to answer the following questions. 1. How many different correlations are shown in the first computer output? 2. Which variables show the strongest linear correlation? 3. Which variables show the weakest linear correlation? 4. As price of the cars increases, does miles-per-gallon on the highway tend to increase? 5. Is there a negative linear correlation between turning diameter and horsepower? 6. As horsepower increases does the price of the car tend to increase? 7. What range of values do the correlations fall within?

Explanation / Answer

answer(5) No, correlation between turning diameter(turndiam) and horse power(horsepow) is 0.510,

answer(6) Yes, correlation between price and horse power(horsepow) is 0.723, which is positive.

so increase in horespower tends to increase in price and vice-versa

answer(7) the range of correlation coefficient is between -1 to 1

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