Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
- The Z-score allows you to decide if your sample is different from the population mean. In order to use z, you must know four things:
- The population mean.
- The population standard deviation.
- The sample mean.
- The sample size.
- Usually in stats, you don’t know anything about a population, so instead of a Z score you use a T-Test with a T Statistic.
- The major difference between using a Z score and a T statistic is that you have to estimate the population standard deviation. The T test is also used if you have a small sample size (less than 30).
I think 89 I don’t know why I am just guessing
6 times
6 * 1/4 is 6/4
6/4 is 1 2/4 which is 1 1/2
The answer is 4. You take 2 and divide it by 0.5.
