Adrian hopes that his new training methods have improved his batting average. Before starting his new regimen,
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Question:
Adrian hopes that his new training methods have improved his batting average. Before starting his new regimen, he was batting 0.220 in a random sample of 50 at bats. For a random sample of 24 at bats since changing his training techniques, his batting average is 0.375. Determine if there is a sufficient evidence to say that his batting average has improved at the 0.10 level of significance.
Related Book For
Mathematical Statistics with Applications in R
ISBN: 978-0124171138
2nd edition
Authors: Chris P. Tsokos, K.M. Ramachandran
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