Question

In: Statistics and Probability

Please complete a, b and c SUMMARY STATISTICS Count        Sum    Average    Variance...

Please complete a, b and c

SUMMARY STATISTICS

Count        Sum    Average    Variance

12 164 13.66667    3.515152

12 147 12.25        3.840909

12 169 14.08333    1.901515

A. How many times was each weapon tested?

B. What are your null and alternative hypotheses for each of the three tests?

C. What is your decision for each test?

Solutions

Expert Solution

(a) 12

(b) Possibilities are 3 2-sample t-tests (?) or 3 2 sample t-tests (>)

(c) t = 1.8094, p value = .0841, reject

t= -2.650, p value = .0155, reject

t = -.6202, p value = .5421, fail to reject


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