Correlation Coefficient | nursing homework essays

Scenario 1: A local high school wants to see how their AP Psychology exam scores compare to the AP Psychology exam scores for the whole country.

Flag question: Question 1
Question 1
What is the most appropriate test statistic to use to test the hypothesis in scenario 1?
Group of answer choices

Correlation coefficient

Regression

Dependent samples t test

Z-score

One way ANOVA

Independent samples t-test

One sample z-test

Flag question: Question 2
Question 2
What is the null hypothesis for scenario 1?
Group of answer choices

H0: X (population)
µ (sample)

r > 0

H0: X (sample) = µ (population)

H0: m1 (sample)
m2 (population)

H0: X1 (sample) = X2 (population) = X3 (control)

H0: X (sample) > µ (population)

Flag question: Question 3
Question 3
What is the alternative hypothesis for scenario 1?
Group of answer choices

r ≠ 0

H1: m1 < m2

H1: X ≠ µ

H1: X1 ≠ X2 ≠ X3

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Scenario 2. A researcher is interested in examining how a new exercise program aimed at body positivity can influence teenagers’ self-esteem. She randomly assigns teenagers to either engage in the new exercise program for 8 weeks (the experimental group) or to a control group that does not do the program and then compares their self-esteem.

Flag question: Question 4
Question 4
What is the most appropriate test statistic to use to test the hypothesis in scenario 2?
Group of answer choices

Factor Analysis

One-way ANOVA

z-score

Dependent samples t-Test

z-test

Independent samples t-Test

Structural Equation Model

Correlation Coefficient

Flag question: Question 5
Question 5
What is the null hypothesis for scenario 2?
Group of answer choices

H0: self esteem in the experimental group > self esteem in the control group

H0: self esteem in the experimental group = self esteem in the control group

H0: µ1(group that does the new program) = µ2(control group 1) =µ3(control group 2)

H0: self esteem in the experimental group
self esteem in the control group

H0: self esteem in the experimental group < self esteem in the control group

H0: rxy = 0

Flag question: Question 6
Question 6
What is the alternative hypothesis for scenario 2?
Group of answer choices

H1: self esteem in the experimental group > self esteem in the control group

H1: self esteem in the experimental group < self esteem in the control group

H1: self esteem in the experimental group
self esteem in the control group

H1: self esteem in the experimental group = self esteem in the control group

H1: µ1(experimental group)
µ2(control group 1)
µ3(control group 2)

H1: rxy = 0

Flag question: Question 7
Question 7
What is the independent variable for scenario 2?
Group of answer choices

The body-positive exercise program

The researchers

The participants

There is no IV for this type of analysis

Self esteem

Flag question: Question 8
Question 8
What is the dependent variable for scenario 2?
Group of answer choices

The body-positive exercise program

The participants

There is no DV for this type of analysis

Self esteem

The researchers

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Scenario 3. A manager at a large company wants to know if there is an association between time spent on zoom and ratings of happiness among employees who work from home.

Flag question: Question 9
Question 9
What is the most appropriate test statistic to use to test the hypothesis in scenario 3?
Group of answer choices

One-way ANOVA

Dependent samples t-Test

Regression Analysis

P-test

Independent samples t-Test

Correlation Coefficient

One sample z-Test

Z-score

F-test

Flag question: Question 10
Question 10
What is the independent variable for scenario 2?
Group of answer choices

There is no IV for this type of analysis

Happiness

Time spent on zoom

The participants’ workload

The type of job they have

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Scenario 4. A researcher wants to explore whether stress increases after experiencing sleep deprivation. She measures participants stress levels before and after staying up for one night.

Flag question: Question 11
Question 11
What is the most appropriate test statistic to use to test the hypothesis in scenario 4?
Group of answer choices

One-way ANOVA

Independent samples t-Test

Correlation Coefficient

Z-score

Dependent samples t-Test

P-test

Regression Analysis

F-test

T-test for the significance of the correlation coefficient

One sample Z-test

Flag question: Question 12
Question 12
What is the null hypothesis for scenario 4?
p
0 words

Flag question: Question 13
Question 13
What is the alternative hypothesis for scenario 4?
p
0 words

Flag question: Question 14
Question 14
What is the independent variable for scenario 4?
p
0 words

Flag question: Question 15
Question 15
What is the dependent variable for scenario 4?
p
0 words

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Scenario 5. A researcher is interested in examining how different employee-morale boosting activities can influence employee job satisfaction. She randomly assigns different companies to provide one of three possible activities: an employee appreciation lunch, free coffee every Wednesday for a month, or a 20-minute extended lunch break every Friday for a month an then compares employee satisfaction rates between the three companies.

Flag question: Question 16
Question 16
What is the most appropriate test statistic to use to test the hypothesis in scenario 5?
Group of answer choices

P-test

One-way ANOVA

Independent samples t-Test

One sample Z-Test

Z-score

Dependent samples t-Test

Regression Analysis

Correlation Coefficient

Flag question: Question 17
Question 17
What is the null hypothesis for scenario 5?
Group of answer choices

HO: µ1(lunch) = µ2(coffee) =µ3(extended break)

H0: µ1coffee
µ2extended lunch

H0: Mcoffee= µlunch

H0: rxy = 0

H0: µ1coffee = µ2extended lunch

H0: µ1coffee
µ2extended lunch

HO: µposttestA = µpretestB

Flag question: Question 18
Question 18
What is the alternative hypothesis for scenario 5?
p
0 words

Flag question: Question 19
Question 19
What is the independent variable for scenario 5?
Group of answer choices

How many years participants have been working at that job

The participants

The type of work the employees do at the company

The type of morale-boosting activity

The size of the company

Employee job satisfaction

Flag question: Question 20
Question 20
What is the dependent variable for scenario 5?
Group of answer choices

The size of the company

Employee job satisfaction

The type of work the employees do at the company

How many years participants have been working at that job

The participants

The type of morale-boosting activity

Flag question: Question 21
Question 21
Come up with your own study idea, just like the scenarios you see in the questions above. Explain the study (just like in scenarios above), and then tell me the following information for your study. Make sure this is your own original study idea!
IV:
DV:
Null Hypothesis:
Alternative Hypothesis:
Type of Analysis you would use to test the hypothesis in your study:
p
0 words

Flag question: Question 22
Question 22
Now, pretend you actually ran the study you came up with. Make up the results (the test statistic values, means and SDs), and write up the results as you would see them in an APA style research paper. Note, you do not actually have to do any calculations here! You just need to make up the means and sds for each group, the test statistic value, and the p value and write out the results. You can use the answers to the write up questions on the previous 4 assignments as a template for this!

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