Question

PLEASE HELP I AM SO LOST

Answer 1

me too

Answer 2

A professor wants to conduct a study to know whether the grades she gives to her students affect their evaluations of her. She teaches four classes of ten students each. She has a theory that the grades and her evaluations are affected by the following characteristics of students:
A student's gender
A student's age
The hours of sleep a student gets per night
A student's year in the college
A student's current grade
The number of pets a student owns
In a 2- to 3-page Microsoft Word document, address the following:
Identify the independent and dependent variables in this study (remember that the independent variable is the one being manipulated or change and the dependent variable is the outcome variable). For the independent variables, explain what can be the possible levels (subcategories within each variable) of the variables or the range of values (e.g. if the independent variable was sex then the levels would be male and female).
Explain the relationship between the sample and the population in the study (Identify the population of interest and then what the sample is - remember that the sample is a subset of the population).
Identify the scales of measurement (nominal, ordinal, interval, and ratio) for each of the variables. Explain why the scale of measurement you chose is appropriate for this study. Some variables have more than one possible scale of measurement; so support your reasoning with examples (e.g. a variable such as age could be measured on a ratio scale (e.g. from 0 to 100) or on an ordinal scale by creating categories (e.g. 0-10, 11-20, etc.).
In one of the professor's classes, students' evaluations of her (scored on a scale of 1 to 10) are as follows: 3, 5, 5, 5, 5, 6, 6, 8, 8, and 9. For these evaluations:
Calculate (ΣX)/n.
Check out the online lecture that shows you how to calculate these formulas.
The university changes its scoring policy, and now the students' evaluations are scored on a scale of 5 to 15. For these evaluations:
Calculate (Σ(X + 5))/n.
The professor wants to see what would happen if each student gives her one point higher. Describe the formula to calculate that.
Cite your sources on a separate page using APA format.

Answer 3

LOST WITH WHAT

Answer 4

OH.

Answer 5

yeah

Answer 6

...Dang...

Answer 7

Copy it into a text editor and erase all useless information, I'll do the first paragraph for you.

Professor studies whether grades affect evaluation.
ten students in each four classes
Theory (hypothesis) is
grades and evaluations affected by:
gender, age, hours sleep, college year, current grade, and number of pets

Answer 8

Explain the relationship between the sample and the population in the study

Identify the scales of measurement (nominal, ordinal, interval, and ratio) for each of the variables.Explain why the scale of measurement you chose is appropriate for this study. some variables have more than one possible scale of measurement

in one of the professors classes, students evaluations of her (scored on a scale of 1 to 10) are as follows 3,5,5,5,5,6,6,8,8 and 9 for these evaluations calculate \[(\Sigma x)/n\]

The university changes its scoring policy and how the students evaluations are scored on a scale of 5 to 15. for these evaluations calculate \[(\Sigma (x+5))/n\]

The professor wants to see what would happen if each student gives her one point higher describe the formula to calculate that

Answer 9

does this help?

Answer 10

I guess the question is; does this help?
I don't need to understand it, you do.

Break it down into the smallest pieces, then build it up again.

Answer 11

First, as simply as you can:
What's sample and population?

Answer 12

sample is the subset of the population

Answer 13

population would be the students

Answer 14

what does the professor mean by this
(remember that the independent variable is the one being manipulated or change and the dependent variable is the outcome variable).

Answer 15

Later you can always bulk up sentences with more words, like "relationship" and "context" and give examples of each.

Answer 16

independent variable can be changed.
I'll look it up, for now, move on, what's nominal?

Answer 17

An independent variable can be changed, like an input to what is being tested. They can be changed to see if they have an affect on the output. Like find out whether having a pet vs not having a pet would effect the result.

The output of the experiment is dependent (on the input, on the independent variable).

Answer 18

My next question will be, what's nominal with respect to the first variable, gender?

Keep going!! You can do it!

Answer 19

Nominal variables allow for only qualitative classification. example 5 female 5 male am i on the right track