Enable contrast version

# Tutor profile: Marian P.

Inactive
Marian P.
Tutor for Business, Business Research, and Statistics
Tutor Satisfaction Guarantee

## Questions

### Subject:Economics

TutorMe
Question:

Keep in mind the rule of 70. The population of a town is growing by 4% per year. How long will it take the population to double?

Inactive
Marian P.

70/4 = 17.5. The population of the town will double in 17 and a half years.

### Subject:Statistics

TutorMe
Question:

Two groups of high-school students are being studied. One group is regularly attending study skills workshops, and the other is not. The two groups' GPAs are compared using a paired-sample t-test with an alpha level of .05. The test returns a p-value of .002. State the two-tailed and one-tailed hypotheses and interpret the p-value.

Inactive
Marian P.

Ho: There will be no difference between the GPAs of the group that attended the workshops and the GPAs of the group that did not attend the workshops. Ha (two-tailed): There will be a difference between the GPAs of the group that attended the workshops and the GPAs of the group that did not attend the workshops. Ha (one-tailed): The GPAs of the group that attended the workshops will be higher than the GPAs of the group that did not attend the workshop. Because the p-value is less than the alpha level, the null hypothesis can be rejected. For a two-tailed test, it can be concluded that there is a statistically significant difference in the GPAs of the group that attended the workshops and the GPAs of the group that did not. For a one-tailed test, it can be concluded that the GPAs of the group that attended the workshops are statistically significantly higher than the GPA of those that did not.

### Subject:Data Science

TutorMe
Question:

State a situation in which running a multiple regression would be appropriate.

Inactive
Marian P.

A client would like to know which aspects of his different advertisements are most effective. A multiple regression can be run using his advertisements' effectiveness, analyzing them to find out if celebrity sponsorship, certain jingles, or emotional appeals are driving consumer purchasing the most.

## Contact tutor

Send a message explaining your
needs and Marian will reply soon.
Contact Marian

## Request lesson

Ready now? Request a lesson.
Start Lesson

## FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.