Answer:
Population standard deviation (σ) = 0.3 in
Step-by-step explanation:
Sample mean = 3.07 in
Sample standard deviation (s) = 0.21 in
Sample size (n) = 62 cups
Population standard deviation (σ) = ?
The point estimate for the population standard deviation is given by sample standard deviation divided by the square root of the sample size:
[tex]\sigma = \frac{s}{\sqrt{n}}\\\sigma = \frac{0.21}{\sqrt{62}}\\\sigma = 0.03\ in[/tex]
