Sunday

December 21, 2014

December 21, 2014

Posted by **John** on Sunday, October 27, 2013 at 6:23pm.

a. What is the probability that your sample mean is between 12 and 13?

b. What is the probability that a single observation is between 12 and 13?

c. What is the probability that all of your observations are between 12 and 13?

- Probability (Partial) -
**PsyDAG**, Monday, October 28, 2013 at 1:33pma. Z = (score-mean)/SEm

SEm = SD/√n

SD = √variance

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.

b. Z = (score-mean)/SD

Use same table.

c. I'm not sure about this one.

**Answer this Question**

**Related Questions**

statistics - Let X be the average of a sample of size 25 independent normal ...

Statistics - If the population is normally distribution then the sample must be ...

business statistics - A random sample of size 15 taken from a normally ...

probability - A fair coin is flipped independently until the first Heads is ...

stats - Consider an infinite population with 25% of the elements having the ...

statistics - A specific study found that the average number of doctor visits per...

statistics - Women’s heights are normally distributed with a mean of 162 cm and ...

Statistics - Are these statements true or false? 1. The sample mean, the sample ...

probability - A random experiment of tossing a die twice is performed. Random ...

Statistics/probability - The random variable X has a binomial distribution with ...