a population has a mean of 51 and a standard deviation of 3.4. If repeated samples of 20 units are taken from this population, what is the likely standard dev of the sample means

0.76

3.4

0.17

2.55

- Thread starter johnuk
- Start date

a population has a mean of 51 and a standard deviation of 3.4. If repeated samples of 20 units are taken from this population, what is the likely standard dev of the sample means

0.76

3.4

0.17

2.55

- Joined
- Apr 12, 2005

- Messages
- 10,561

Sample size 20... Is there a square root in your denominator future?

a population has a mean of 51 and a standard deviation of 3.4. If repeated samples of 20 units are taken from this population, what is the likely standard dev of the sample means

0.76

3.4

0.17

2.55

- Joined
- Nov 12, 2017

- Messages
- 6,663

Presumably you will have been given a formula for the standard deviation of the sample means. It involves a square root.

a population has a mean of 51 and a standard deviation of 3.4. If repeated samples of 20 units are taken from this population, what is the likely standard dev of the sample means

0.76

3.4

0.17

2.55

Please find it in your notes, try applying it, and write back, so we can give any additional help you need.