Question to test your Steps in Hypothesis Testing knowledge

Question

A study measured the heights and arm spans of 6060 adult giraffes, with data summarized in statistical software output. The sample correlation coefficient is r=0.912 r = 0.912 and the pp-value is 0.00010.0001. At a significance level of α=0.05\alpha=0.05, is there sufficient evidence to support the claim that a linear correlation exists between height and arm span in giraffes? Is it easier to measure arm span than height, and can arm span be used to predict height?

Accepted Answer

There is sufficient evidence to support the claim that linear correlation exists between height and arm span in giraffes.Measuring arm span is easier, and arm span can be used to predict height.

Answer

There is insufficient evidence to support the claim that linear correlation exists between height and arm span in giraffes.Measuring height is easier, and arm span cannot be used to predict height.

Answer

There is insufficient evidence to support the claim that linear correlation exists between height and arm span in giraffes.Measuring arm span is easier, and arm span can be used to predict height.

Answer

There is sufficient evidence to support the claim that linear correlation exists between height and arm span in giraffesMeasuring height is easier, and arm span cannot be used to predict height.

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