Posted by **HN** on Tuesday, December 11, 2012 at 1:28am.

a restaurant that bills its house account monthly is concerned that the average monthly bill exceeds $200 per account. A random sample of twelve account is selected, resulting in a sample mean of $220 and a standard deviation of $12. Use a= 0.05. what is the critical value for this test? show the rejection and non rejection area. calculate the test statistic?

## Answer This Question

## Related Questions

- Statistic - A restaurant that bills its house account monthly is concerned that ...
- statistics - The customer bills in a family restaurant are normally distributed...
- Math - According to CTIA-The Wireless Association, the mean monthly cell phone ...
- Finance - annual net cost Monthly fee $4, check processing fee of 20 cents, ...
- Math - Let x be a random variable representing the monthly cost of joining a gym...
- math - Determine the annual net cost of these checking accounts: a. Monthly fee...
- Accounting - Annual interest of 5% paid if balance exceeds 800, $7 monthly fee ...
- statistic - The amount of time a bank teller spends with each customer has a ...
- Statistics - The amount of Jen's monthly phone bill is normally distributed with...
- statistics - A specific study found that the average number of doctor visits per...

More Related Questions