# math

a random sample of 42 college graduates who worked during their program revealed that a student spent an averge of 5.5 yeas on the job before being promoted. The sample standard deviation was 1.1 yrs. Using the .99 degree of confidence, what is the confidence interval for the population mean
choices 5.04 and 5.96, 5.06 and 5.94, 2.67 and 8.33 4.4 and 6.60

1. 👍 0
2. 👎 0
3. 👁 217
1. 5.06 and 5.94

1. 👍 0
2. 👎 0
posted by joe
2. 5.04 and 5.96 is the correct answer

1. 👍 0
2. 👎 0
posted by Jlg

## Similar Questions

1. ### Math

A random sample of 42 college graduates revealed that they worked an average of 5.5 years on the job before being promoted. The sample standard deviation was 1.1 years. Using the .99 degree of confidence, what is the confidence

asked by Jim on February 2, 2013
2. ### math

According to the statistics of a famous high school in Canada, all their graduates went to either A or B for university study. Following are the proportions of graduates who went to the two universities. University Proportion A

asked by Tom on December 9, 2012
3. ### Probability and Statistics

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere

asked by Katy on November 27, 2013
4. ### Probability and Statistics

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere

asked by Katy on November 28, 2013
5. ### Math

If 3/4 of the employees in a supermarket are not college graduates,what is the ratio of the number of college graduates to those who are not college graduates? I have solved ,please check it. Let x total employees (3/4)× not

asked by ABC on June 2, 2017
6. ### Probability and Statistics

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere

asked by Katy on November 29, 2013
7. ### Probability and Statistics

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere

asked by Katy on November 30, 2013
8. ### Probability and Statistics

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere

asked by Katy on November 30, 2013
9. ### Statistics

The Economic Policy Institute periodically issues reports on wages of entry-level workers. The institute reported that entry-level wages for male college graduates were \$21.68 per hour and for female college graduates were \$18.80

asked by Taylor on March 23, 2015
10. ### satistics

Among a random sample of 500 college students, the mean number of hours worked per week at non-college related jobs is 14.6. This mean lies 0.4 standard deviations below the mean of the sampling distribution. If a second sample of

asked by Lissa on September 15, 2015

More Similar Questions