# statistics check

posted by .

Consider the following bivariate data.

Point A B C D E F G H I J
x 3 4 2 1 7 2 1 0 4 2
y 1 7 3 3 6 6 5 0 6 2

(b) Calculate the covariance. (Give your answer correct to two decimal places.)

(c) Calculate sx and sy. (Give your answers correct to three decimal places.)
sx = 26 was my answer.
sy = 39 was my answer .

(d) Calculate r using formula 13.2. (Give your answer correct to two decimal places.)

(e) Calculate r using formula 13.3. (Give your answer correct to two decimal places.)
190.5 .

• statistics check -

xi

8

10

12

6

4

yi

2

4

6

8

10

What is the estimated regression equation for x and y?
y-hat = 10.8 - 0.6x
y-hat = 11.6 - 0.6x
y-hat = 10.8 + 0.6x
y-hat = 11.6 + 0.6x

• statistics check -

y-hat = 10.8 - 0.6x

• statistics check -

y-hat = 11.6 + 0.6x

## Similar Questions

1. ### environmental science

Please check this: Scientists use statistics to a. graph data b. analyze data c. communicate ideas to each other d. all of the above B ( in my book it says: scientists rely on and use statistics to summarize, characterize, analyze, …
2. ### statistics

SPSS dataset complete_mooney_bp.sav, which can be found in Doc Sharing, was collected by Ms. Kim Mooney in 1989 as part of completing her dissertation at UNH. The dataset was collected to assist in exploring the relationship between …
3. ### statistics

Ms. Kim Mooney in 1989 as part of completing her dissertation at UNH. The dataset was collected to assist in exploring the relationship between the “effect of social stress on blood pressure.” This was investigated by collecting …
4. ### statistics

27. Consider the following hypothesis test. H0: µ = 15 Ha: µ ≠ 15 A sample of 10 gives a sample mean of 8.9 and population variance of 9. Consider the following data drawn from a normally distributed population: 4, 8, 12, 11, …
5. ### math

Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your instructor may ask you to turn in this …
6. ### math help

Can some one help me with this one??? Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your
7. ### statistics

Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (b) Calculate the covariance. (Give your answer correct to two decimal places.) (c) Calculate sx and sy. (Give your answers …
8. ### math

Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your instructor may ask you to turn in this …
9. ### Algebra

I am confused about this... A survey is being conducted to determine the favorite movies for various ages. Which of the following best describes this survey?
10. ### statistics

Consider the following situation, and answer each of the following multiple choice questions. In your write-up, just list the sub-question letter (A-J) and your answer – no need to restate the question or to justify your answer. …

More Similar Questions