Fifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and listed in a data set. Results are shown in the accompanying display. Is there sufficient evidence to support the claim that there is a linear correlation between the weights of bears and their chest sizes? When measuring an anesthetized bear, is it easier to measure chest size than weight? If so, does it appear that a measured
chest size can be used to predict the weight? Use a significance level of
Determine the null and alternative hypotheses.
(Type integers or decimals. Do not round.)
Step 1 :Determine the null and alternative hypotheses for the claim that there is a linear correlation between the weights of bears and their chest sizes.
Step 2 :The null hypothesis (
Step 3 :The alternative hypothesis (
Step 4 :Given the correlation coefficient
Step 5 :The P-value is
Step 6 :Since we reject the null hypothesis, we accept the alternative hypothesis, which suggests that there is a linear correlation between the weights of bears and their chest sizes.
Step 7 :
Step 8 :