Find the range, variance, and standard deviation for each of the two samples, th

Question

Find the range, variance, and standard deviation for each of the two samples, then compare the two sets of results. When investigating times required for drive-through service, the following results (in seconds) were obtained. Restaurant A: 75 sec; 493.98 sec^2; 22.23 sec Restaurant B: 70 sec; 727.98 sec^2; 26.98 sec There is more variation in the times for restaurant B. Restaurant A: 57 sec; 493.98 sec^2; 22.23 sec Restaurant B: 77 sec; 727.98 sec^2; 26.98 sec There is more variation in the times for restaurant B. Restaurant A: 57 sec; 493.98 sec^2; 22.23 sec Restaurant B: 56 sec; 727.98 sec^2; 32.89 sec There is more variation in the times for restaurant B. Restaurant A: 57 sec; 793.98 sec^2; 28.18 sec Restaurant B: 77 sec; 727.98 sec^2; 26.98 sec There is more variation in the times for restaurant A.

Explanation / Answer

Correct answer is B.

Variable Range Variance StDev Restaurent A 57 493.98 22.23 Restaurent B 77 727.98 26.98

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