Question

Calculate a 95% confidence interval based on the following sample data (the population is assumed to...

Calculate a 95% confidence interval based on the following sample data (the population is assumed to have a normal distribution):

35.3 73.4 25.8 50.6 78.2 52.9 77.2

Math   Statistics-And-Probability   
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Answer #1

Solution :-

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56.2 2.447 ( 20.91 / 7 )

56.2 19.34

( 36.86 , 75.54 )

A 95 % Confidence interval for population mean is( 36.86 , 75.54 )

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