Briefly describe what the statistic represents

Assignment Help Basic Statistics

Reference no: EM131893657

QUESTIONS - Use this picture for the questions below.

Q1. Which of the following Pearson correlation coefficients best describes the above scatter plot?

+.30

-.55

+.97

-1.00

Q2. Calculate the r² for the correlational coefficient .78.

Q3. Briefly describe what the r² statistic represents.

Q4. How many subjects provided data for this correlational matrix?

Q5. Which variable has the strongest relationship to academic self-esteem?

Q6. Explain what the correlation between general self-esteem and reading achievement means to a person with no statistical background.

Q7. The critical value for a one-tailed t-test using an alpha level of .01 with 22 degrees of freedom is

2.508

2.819

2.518

2.831

Use the question below to answer the following questions.

A track roach is interested in determining if her training in the long jump is effective in helping her students lengthen their jumps. Two groups of nine 6^th grade students are compared on their long jump scores. One group received the coach's training while the other group did not. Answer the coach's question by analyzing the following data using an alpha = .05. Include

Students without training	Students with training
12	14
13	17
11	19
15	10
22	20
16	20
9	11
14	14
7	16

Q8. What is the M¹?

Q9. What is the M₂?

Q10. What is the s₂?

Q11. What is the SEm₁?

Q12 .What is the SMe₂?

Q13. How many total subjects were involved in the study?

Q14. What was the t-value?

Q15. How would you write up these results in a sentence?

Attachment:- Assignment File.rar

Reference no: EM131893657

Questions Cloud

Indifferent in selling shares back and holding on to them : At what buy-back price would shareholders be indifferent between selling shares back and holding on to them?

Why is the line absorption spectrum appropriate : Why is the line absorption spectrum appropriate and what does it describe about the process that created the spectrum?

Why does media directly influence individuals : Why does media directly influence individuals? How involved should the government be in protecting us from media effects?

What are the largest and smallest resistances : What are the largest and smallest resistances you can obtain by connecting a 36.0-O , a 50.0-O , and a 700-O resistor together?

Briefly describe what the statistic represents : Explain what the correlation between general self-esteem and reading achievement means to a person with no statistical background

What is the radius of the electron circular path : What is the radius of the electron's circular path? The mass of an electron is 9.11 x 10-31kg. =_________ µm

Describe the main features of the errors : Laypersons are often unaware of the extent to which memory errors (including memory of events that did not occur and memory distortions) are commonplace.

Find the magnitude of the average induced emf in the coil : Find the magnitude of the average induced emf in the coil. Answer in units of µV.

Does author let you know the given part is significant : Why is the quotation significant? How does author let you know this part is significant (consider word choice, tone)? What does the Glass Castle symbolize here?

User Account

All Pages