Posted by **John** on Sunday, September 26, 2010 at 5:25pm.

he Oil Price Information Center reports the mean price per gallon of regular gasoline is $ 3.79 with a population standard deviation of $ 0.18.

Assume a random sample of 40 gasoline stations is selected and their mean cost for regular gasoline is computed.

1. What is the population in this case? what is the sample? what is the sample size?

2. What is the standard error of the mean in this experiment?

3. What is the probability that the sample mean is between $ 3.77 and $ 3.81?

4. What is the probability that the difference between the sample mean and the population mean is less than 0.01?

5. What is the likelihood the sample mean is greater than $ 3.87?

- Statistics -
**a**, Monday, March 24, 2014 at 10:11pm
2.0285

## Answer this Question

## Related Questions

- math statistics - The average price of a gallon of unleaded regular gasoline was...
- math statistics - please help me I've waited for hours The average price of a ...
- statistics - according to the energy information administration (officially ...
- Satistics - **I don't want the answer, I want to know how to set the problem up ...
- statistics - The average price of a gallon of unleaded regular gasoline was ...
- statistics - please help me I've waited for hours The average price of a gallon ...
- statistics - Statistical Abstracts (117th edition) reports sale price of ...
- STATISTICS HELP!!!!!!! - Statistical Abstracts (117th edition) reports sale ...
- statistics - The average gasoline price of one of the major oil companies has ...
- College statistics - Statistical Abstracts (117th edition) reports sale price ...

More Related Questions