# statistics

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:

1. 👍 0
2. 👎 0
3. 👁 67
1. .05,.07

1. 👍 0
2. 👎 0
posted by nicole

## Similar Questions

1. ### Statistics

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

asked by John on February 5, 2013
2. ### Statistics

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

asked by Stanley on February 1, 2013
3. ### Statistics

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

asked by Stanley on February 3, 2013
4. ### Math

Student budgeted a \$25 a month for phone service. If the telephone company charges \$18 a month for basic service and \$.05 a minute for each long distance call, how many minutes can be spent on long distance calls each month?

asked by Spencer on November 24, 2014
5. ### MAT 116 – Algebra 1A

A long-distance telephone plan costs \$2.00 a month, plus 4 cents per minutes, or part thereof, for any long-distance call made during the month. Write a verbal rule to determine the total monthly cost for your long-distance calls

asked by Peter on December 2, 2009
6. ### Math - Word Problem

Word problems confuse me >_> You are choosing between two long-distance telephone companies. Company A charges \$.09 per minute plus \$4 monthly fee. Company B charges \$.11 per minute with no monthly fee. X = number of minutes you

asked by Lynn on October 12, 2011
7. ### math

Telephone company A charges \$3.00 for the first minute of any long distance call and \$0.50 for each additional minute. Telephone company B charges \$2.00 for the first minute of any long distance call and \$0.70 for each additional

asked by Vicky on May 8, 2014
8. ### math

the Ace telephone Co. charges a flat monthly frr of \$22.00 for a telephone line and \$0.20 per minute for long distance calls. a.if you make 25 minutes of long distance calls per month,what will it cost?

asked by pau on September 21, 2015
9. ### math

grant pays \$0.10 per minute plus \$5 per month for telephone long distance write an algebraic expression for m minutes of long distance calls in one month

asked by karla on October 1, 2015