Question

karen is a geneticist studying longevity. a recent study asserts that the ages of the redwood trees in a certain forest have a population mean of 1261 years with a population standard deviation of 314 years.
to help evaluate if the studys assertion is true, karen looks at a sample of 10 of these trees. these trees have a sample mean age of 1120 years and a sample standard deviation of 276 years.
fill in the blanks below with the proper notation for the population mean, the population standard deviation, and the sample standard deviation.
population mean: select = 1261 years
population standard deviation: select = 314 years
sample standard deviation: select = 276 years

Explanation:

Step1: Recall population mean notation

The population mean is denoted by $\mu$.

Step2: Recall population standard - deviation notation

The population standard deviation is denoted by $\sigma$.

Step3: Recall sample standard - deviation notation

The sample standard deviation is denoted by $s$.

Answer:

Population mean: $\mu = 1261$ years
Population standard deviation: $\sigma = 314$ years
Sample standard deviation: $s = 276$ years