Four research teams each used a different method to collect data on how fast a new strain of maize sprouts. Assume that they all agree on the sample size and the sample mean (in hours). Use the (confidence level; confidence interval) pairs below to select the team that has the smallest sample standard deviation.
A. Confidence Level: 99.7%; Confidence Interval: 42 to 48
B. Confidence Level: 95%; Confidence Interval: 43 to 47
C. Confidence Level: 68%; Confidence Interval: 44 to 46
D. Confidence Level: 95%; Confidence Interval: 44 to 46
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