You are told that in a sample of size 225 the mean is 48.5 and the standard deviation is 1.8. The study is reported with 90% confidence level. Explain how to determine if 48.8 is within the confidence interval.
CL (%); 90, 95, 99
z*score:1.645, 1.96, 2.58
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Home » Mathematics » You are told that in a sample of size 225 the mean is 48.5 and the standard deviation is 1.8. The study is reported with 90% confidence level. Explain how to determine if 48.8 is within the confidence interval. CL (%); 90, 95, 99 z*score:1.645, 1.