Posted by **John** on Tuesday, February 5, 2013 at 10:20pm.

A telephone company's records indicate that private customers pay on average $17.10 per month for long-distance telephone calls. A random sample of 10 customers' bills during a given month produced a sample mean of $22.10 expended for long-distance calls and a sample variance of 45. A 5% significance test is to be performed to determine if the mean level of billing for long distance calls per month is in excess of $17.10. The calculated value of the test statistic and the critical value respectively are:

(2.36, 1.8331)

(1.17, 2.2622)

(2.36, 2.2622)

(1.17, 1.8331)

(0.025, 1.8125)

## Answer this Question

## Related Questions

- statistics - A telephone company's records indicate that private customers pay ...
- Statistics - A telephone company's records indicate that private customers pay ...
- Statistics - A telephone company's records indicate that private customers pay ...
- MAT 116 – Algebra 1A - A long-distance telephone plan costs $2.00 a month, plus...
- Math - Student budgeted a $25 a month for phone service. If the telephone ...
- Statistics - Service times for customers at a post office follow some right-...
- statistics - In a random sample of 100 customers, 62 returned with a month. For ...
- statistics - historically, the average customer spends $8.53 for all TGP ...
- Math - Global Telephone charges 30 dollars for monthly phone service, plus a ...
- Statistics - A set of telephone lines is to be installed so as to connect ...