Question

I have to conduct a Hypothesis Test on my sample Size.

sample size=58

(the first process involved 40 expenses and the second process was 18 expenses)

I need to conduct a hypothsis test on this evaluation.

•Confidence Interval: Before Improvement

•X=40

•N=58

•p=40/58=0.68

•Confidence Interval: After the improvement

•X=18

•N=58

•P=18/58=0.31

•Confidence Interval: (0.191, 0.429)

•95% confidence (1.96)that the interval contains the true population proportion. With a Margin of error:1

•

•Before the Improvement:

•

•Sample Standard Deviation, s 48.908185591827

•Variance (Sample Standard), s2 2392.0106178846

•Population Standard Deviation, σ 48.292963798441

•Variance (Population Standard), σ2 2332.2103524375

•Total Numbers, N 40

•Sum: 1484.89

•Mean (Average): 37.12225

•Standard Error of the Mean (SEx̄): 7.7330631348202

•

•After the Improvement:

•

•

•Sample Standard Deviation, s 17.276746092814

•Variance (Sample Standard), s2 298.48595555556

•Population Standard Deviation, σ 16.789979227776

•Variance (Population Standard), σ2 281.90340246914

•Total Numbers, N 18

•Sum: 277.82

•Mean (Average): 15.434444444444

•Standard Error of the Mean (SEx̄): 4.0721681063556

Answer 1