Question

**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**

Answer #1

**Solution :-**

---------------------------------------------------------------------------------

**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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________<?__________

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