Cereal A healthy cereal should be low in both calories and sodium. Data for 77 cereals
Chapter 26, Problem 33(choose chapter or problem)
Cereal A healthy cereal should be low in both calories and sodium. Data for 77 cereals were examined and judged acceptable for inference. The 77 cereals had between 50 and 160 calories per serving and between 0 and 320 mg of sodium per serving. Heres the regression analysis: Dependent variable is: Sodium R-squared = 9.0% s = 80.49 with 77 - 2 = 75 degrees of freedom Variable Coefficient SE(Coeff) t-ratio P-value Intercept 21.4143 51.47 0.416 0.6786 Calories 1.29357 0.4738 2.73 0.0079 a) Is there an association between the number of calories and the sodium content of cereals? Explain. b) Do you think this association is strong enough to be useful? Explain.
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