Answer the research question base on information.

(Using hypothesis test- state the hypothesis statements, give test statistic and p-value, draw the conclusion) OR use confidence interval, use 95% confidence and interpret your interval. Finally, in both cases, make sure to include an analysis of the assumptions for each method.

Dataset called hamburger.JMP, The local grocery store packages different grades (based on fat content) of hamburger. Usually the leaner (less fat) grades are more expensive. A random sample of 12 one-pound packages of hamburger labeled 93 percent lean is obtained from the local store and tested for fat content.

Distributions Percentage Lean 128-0.9 Normal Quantile Plo 0.7 -0.6 0- 0.5 -0.3 0.67- 0.2 1.28--0.1 92 93 94 Quantiles 100.0% maximum 94.3 99.5% 97.59 94 3 90.0% 94.0 quartile 93.35 50.090 median 92.5 25.0% quartile 1.825 10% % 91.11 2.5% 0.5% 90.9 0.0% minimum 90.9 Summary Statistics Mean 92.6 Std Dev 0.9657781 Std Err Mean 0.2787961 Upper 95% Mean 93.213626 Lower 95% Mean 91.986374 Confidence Intervals Parameter Estimate Lower Cl Upper CI 1-Alpha Mean 92.6 91.98637 93.21363 0.950 Std Dev 0.965778 0.684152 1.639773 0.950 Test Mean Hypothesized Value 93 Actual Estimate 92.6 DF 11 Std Dev 0.96578 t Test Test Statistic -1.4347 Prob > It 0.1792 Prob > t 0.9104 Prob