Question

at the beginning of last summer, climate scientists issued a report on the thickness of the ice shelves of antarctica. after reading the report, alan wanted to verify its results. he examined a random sample of 15 of the ice shelves and found a sample mean thickness of 575 meters with a sample variance of 15,625 meters². the findings of the report were that the population mean thickness of the ice shelves was 750 meters with a population variance of 10,000 meters². fill in the blanks below with the proper notation for the population mean, the population variance, and the sample mean. population mean: select = 750 meters population variance: select = 10,000 meters² sample mean: select = 575 meters

Explanation:

Step1: Recall population - mean notation

The population mean is denoted by $\mu$.

Step2: Recall population - variance notation

The population variance is denoted by $\sigma^{2}$.

Step3: Recall sample - mean notation

The sample mean is denoted by $\bar{x}$.

Answer:

Population mean: $\mu = 750$ meters
Population variance: $\sigma^{2}=10000$ meters$^{2}$
Sample mean: $\bar{x}=575$ meters