Answer:
The point estimate for the population standard deviation is of 0.061.
Step-by-step explanation:
The point estimate for the population standard deviation is the sample standard deviation.
Sample mean:
[tex]\overline{x} = \frac{1.33+1.25+1.22+1.27+1.39+1.34+1.33+1.32+1.26+1.20+1.28+1.20+1.24+1.38+1.31 }{15} = 1.288[/tex]
Sample standard deviation:
Square root of the sum of the difference squared of all these values (1.33, 1.25, 1.22,...) and the mean of 1.288, divided by 15 - 1 = 14.
Using a calculator, it is of:
[tex]s = 0.061[/tex]
The point estimate for the population standard deviation is of 0.061.
