Test whether there is a significant difference in obesity in the US and Canada. In a study of 500 americans, the average obesity rate was 34.4% with a standard deviation of 6.5%. A study of 400 canadians producedd a mean of 26.1% with a standard deviation of 5.5%. Test at the 0.5 level.
Other instructions if they apply:
Show all calculations and circle the appropriate answers. Round only final calculations and do so to the correct decimal point. Use only the CLASSICAL APPROACH and show all SIX STEPS.
Show all formulas and circle the appropriate answers. Show all six steps, use the p-value approach using the TI-83 or TI-84 calculator (except if chi-square test or correlation).