# A research project was undertaken to evaluate the amount of force needed to elicit a designated response

## Question:

Control or Existing Test or New Design

0.003562............ 0.002477

0.005216............ 0.002725

a. Describe both sets of data using means, standard deviations, and histograms.

b. Check the assumptions for comparing the variances and means of two independent samples. Describe your findings.

c. Will one- or two-tailed tests be appropriate for testing the expectations for the new design? Why?

d. Is there significant evidence to show that the new design has reduced the variability in the required force? Use a = 0.05

e. Is there significant evidence to show that the new design has reduced the mean amount of force? Use a = 0.05.

f. Did the new design live up to expectations? Explain.

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