marknjenbennetp3j1v1
17.04.2020 •
Mathematics
Suppose that the batting average for all major league baseball players after each team completes 100 games through the season is 0.250 and the population standard deviation is 0.35. The null hypothesis is that the American League batters average the same as all other major league players. A sample of 49 players is taken from the American League reveals a mean batting average of 0.265. What is the value of the test statistic, z?
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Ответ:
1 1/5
48/40 = 1 8/40
1 8/40 Simplify to 1 1/5
Hope this helps!