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In Developing an Interval Estimate for a Population Mean,a Sample

Question 53

Multiple Choice

In developing an interval estimate for a population mean,a sample of 40 observations was used.The interval estimate was 28.76 ± 1.48.Had the sample size been 160 instead of 40,the interval estimate would have been:


A) 28.76 ± 0.37
B) 28.76 ± 0.74
C) 28.76 ± 1.48
D) 28.76 ± 2.96

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