Respuesta :
Answer:
- The variation in the sample means makes it possible to make predictions about the population mean.
- The actual population mean is greater than 236.
- The actual population mean is less than 245.
Step-by-step explanation:
Sample data
- 1 2 3 4 5 6
- 240 236 245 243 238 242
Mean = sum of sample data/sample frequency
- (240+236+245+243+238+242)/6 = 240.67
Answer choices:
The variation in the sample means makes it possible to make predictions about the population mean.
- Correct.
The actual population mean is greater than 236.
- Correct. 240.67 > 236
The actual population mean is less than 245.
- Correct. 240.67 < 245
The actual population mean is greater than 245
- Incorrect.
The population mean is the average of the sample means.
- Incorrect.