4. Given the following dataset: 7, 4, 7, 9, 3 a. What is the mean? Show...
4. Given the following dataset: 7, 4, 7, 9, 3
a. What is the mean? Show your work. (1 point)
9+7+7+4+3 = 30 30/5 = 6 Thus, the mean is 6
b. What is the standard deviation? Use the table below to help. Round to 2 decimals. (2 points)
|
X |
- M |
= |
Deviations (x-M) |
Squared Deviations (x-M)2 |
|
7 |
- 6 |
= |
1 |
1 |
|
4 |
-6 |
= |
-2 |
4 |
|
7 |
-6 |
= |
1 |
1 |
|
9 |
-6 |
= |
3 |
9 |
|
3 |
-6 |
= |
-3 |
9 |
|
M = 6 |
||||
|
Sum of Squared Deviations = 24 |
||||
|
Variance = 6 |
||||
|
Standard Deviation = 2.4495 |
||||
c. Using the information from 4a and 4b, convert all 5 of the raw scores (i.e., 7, 4, 7, 9, 3) to z-scores. Round to 2 decimals. Make sure you show your work. (5 points)
Homework Answers
![Given hel Hean: 6, S.D: 2.4495 Lel Rass Score : x So S D 2-4495 .40825 0.4 O. 81641 산1-0 82] L-6 Q.4495 3- C .449 6.82 Z-Store 1-1](http://img.homeworklib.com/questions/0b2d6690-7493-11ea-9901-33de06c124be.png?x-oss-process=image/resize,w_560)
Add Answer to:
4. Given the following dataset: 7, 4, 7, 9, 3
a. What is the mean? Show...
Matching.. 1 correlation 2.covariance 3. deviation 4.mean 5. median 6. mode 7. range 8. residual 9....
Matching.. 1 correlation 2.covariance 3. deviation 4.mean 5. median 6. mode 7. range 8. residual 9. sample size 10. standard deviation 11. standard error 12. Variance a. the difference between an observed value and the ,ean of the set of valies is a quantifies the direction and stregnth of a linear relationship between two quantitive variables is the average of the squared deviations of a dataset c. the d.of the three measures of central tendency, the___is affected the most by...
The standard deviation is the quadratic mean of what? 5. 6. What do we get if we multiply the average squared deviation...
The standard deviation is the quadratic mean of what? 5. 6. What do we get if we multiply the average squared deviations by the sample size? 7-9 is the correlation coefficient? Show all your work (Three questions - Thirty points) There are two variables "spiders in your house" (X) and "ants in your house" (Y). What X Y 2 7 15 11 13 11 11 14 10 20 4
The standard deviation is the quadratic mean of what? 5. 6....
Describe the variance and standard deviation ing For the following scores, find the (a) mean. (b)...
Describe the variance and standard deviation
ing For the following scores, find the (a) mean. (b) median, (c) sum of squared deviations (a) variance, and (e) standard deviation 5, 0, 5, 4, 5, 1, 0, 2, 1, 3, 3, 3, 4, 5, 1, 2, 2, 2,2, 1,2 o M-2524 (Round to three decimal places as needed) (b) Find the median. Median 2 (Round to three decimal places as needed) (c) Find the sum of squared deviations. Enter your answer in...
1. Please use this dataset to answer the following questions: 4, 3, 6, 5, 3, 2,...
1. Please use this dataset to answer the following questions: 4, 3, 6, 5, 3, 2, 4, 5, 7, 6, 3, 4, 6, 6, 1, 7, 8, 8, 23, 4, 0, 2, 6, 9, 6, 1, 5, 7, 4, 5 (1) Please calculate mean, median and mode. (2) Please calculate sample standard deviation. (3) According to your answer in part (2), please explain why sample standard deviation can never be negative. (4) Please calculate first quartile, second quartile, and third...
Need help asap!!! You are given the following dataset about the number of hours spent at...
Need help asap!!!
You are given the following dataset about the number of hours spent at the library on one day. 1.05 1.051.08 1.10 1.11 1.13 1.18 1.20 1.20 1.24 1.28 1.34 1.45 1.50 1.52 1.90 1.99 2.55 1.09 1.09 1.14 1.16 1.23 1.24 1.38 1.39 1.53 1.86 3.03 4.19 1. Using your dataset, make a frequency distribution table that displays intervals. Fill in the table below. Start your interval at 1.00. Use 2 decimals to help make your intervals,...
please show your calculations You are given n = 8 measurements. 4, 1, 8, 7, 4,...
please show your calculations
You are given n = 8 measurements. 4, 1, 8, 7, 4, 6, 3, 6. (a) Calculate the range. (b) Calculate the sample mean, x 4.875 (c) Calculate the sample varlance, s2, and standard devlatlon, s. (Round your varlance to four declmal places and your standard devlation to two decimal places.) s2 9.4281 S 3.07 (d) Compare the range and the standard deviation. The range is approximately how many standard deviations? (Round your answer to two...
or the following scores, find the (a) mean, (b) median, (C) sum of squared deviations, (d)...
or the following scores, find the (a) mean, (b) median, (C) sum of squared deviations, (d) variance, and (e) standard deviation. 5,0, 5, 4, 5, 1, 0, 2, 1, 3, 3, 3, 4, 5, 1, 2, 2, 2, 2, 1,2
4) A subset of the MAST 333 data on 'age' is provided below, alongside its dot...
4) A subset of the MAST 333 data on 'age' is provided below, alongside its dot plot. 24 26 22 21 20 233125 22 34 22 26 24 24 24 2031 222323 20 24 26 28 30 32 34 age_subset 4a) Calculate the mean, median, and mode (2 points) 4b) Calculate the standard deviation points) 4c) What percentage of observations would you expect to be within two standard deviations from the mean? (2 points) 4d) Calculate the z-scores for the...
Considering the following dataset: X: 1 2 3 &n
Considering the following dataset: X: 1 2 3 4 5 6 7 8 -------------------------------------------------------------------------------------------------- Y: 2 1 4 8 11 11 12 21 A) Use the formulae discussed in class to compute a and b for Y = a + bX, and the value for R-Squared. Show all work. B) Use Minitab to create a Fitted Line Plot for the same data. Discuss any similarities or differences between your output in part 1 and the output of Minitab.
Matching.. 1 correlation 2.covariance 3. deviation 4.mean 5. median 6. mode 7. range 8. residual 9. sample size 10. standard deviation 11. standard error 12. Variance a. the difference between an observed value and the ,ean of the set of valies is a quantifies the direction and stregnth of a linear relationship between two quantitive variables is the average of the squared deviations of a dataset c. the d.of the three measures of central tendency, the___is affected the most by...
The standard deviation is the quadratic mean of what? 5. 6. What do we get if we multiply the average squared deviations by the sample size? 7-9 is the correlation coefficient? Show all your work (Three questions - Thirty points) There are two variables "spiders in your house" (X) and "ants in your house" (Y). What X Y 2 7 15 11 13 11 11 14 10 20 4
The standard deviation is the quadratic mean of what? 5. 6....
Describe the variance and standard deviation
ing For the following scores, find the (a) mean. (b) median, (c) sum of squared deviations (a) variance, and (e) standard deviation 5, 0, 5, 4, 5, 1, 0, 2, 1, 3, 3, 3, 4, 5, 1, 2, 2, 2,2, 1,2 o M-2524 (Round to three decimal places as needed) (b) Find the median. Median 2 (Round to three decimal places as needed) (c) Find the sum of squared deviations. Enter your answer in...
Need help asap!!!
You are given the following dataset about the number of hours spent at the library on one day. 1.05 1.051.08 1.10 1.11 1.13 1.18 1.20 1.20 1.24 1.28 1.34 1.45 1.50 1.52 1.90 1.99 2.55 1.09 1.09 1.14 1.16 1.23 1.24 1.38 1.39 1.53 1.86 3.03 4.19 1. Using your dataset, make a frequency distribution table that displays intervals. Fill in the table below. Start your interval at 1.00. Use 2 decimals to help make your intervals,...
please show your calculations
You are given n = 8 measurements. 4, 1, 8, 7, 4, 6, 3, 6. (a) Calculate the range. (b) Calculate the sample mean, x 4.875 (c) Calculate the sample varlance, s2, and standard devlatlon, s. (Round your varlance to four declmal places and your standard devlation to two decimal places.) s2 9.4281 S 3.07 (d) Compare the range and the standard deviation. The range is approximately how many standard deviations? (Round your answer to two...
or the following scores, find the (a) mean, (b) median, (C) sum of squared deviations, (d) variance, and (e) standard deviation. 5,0, 5, 4, 5, 1, 0, 2, 1, 3, 3, 3, 4, 5, 1, 2, 2, 2, 2, 1,2
4) A subset of the MAST 333 data on 'age' is provided below, alongside its dot plot. 24 26 22 21 20 233125 22 34 22 26 24 24 24 2031 222323 20 24 26 28 30 32 34 age_subset 4a) Calculate the mean, median, and mode (2 points) 4b) Calculate the standard deviation points) 4c) What percentage of observations would you expect to be within two standard deviations from the mean? (2 points) 4d) Calculate the z-scores for the...
Most questions answered within 3 hours.
-
Enter your answer in the provided box. To what fraction of its
original volume, Vfinal/Vinitial, must...
asked 29 minutes ago -
Can you figure out if any R functions used to subset a time
series 1 or...
asked 53 minutes ago -
Which of the following is correct?
A. APC + MPS = 1
B. APS + MPS...
asked 1 hour ago -
Given a regression sum of squares equal to 2373.59 and a total
sum of squares equal...
asked 2 hours ago -
Compare and contrast the linear motion and angular motion
equations F ma and . That is,...
asked 1 hour ago -
Now that this course has taken you on a journey of introduction
to the world of...
asked 2 hours ago -
The sandwich maker of the EE-Cole-Eye Sandwich Truck was just
fired (for a reason described below)...
asked 4 hours ago -
Name the following coordination compounds using systematic
nomenclature.
1. [Co(H2O)6]Cl2:
2. [Cr(NH3)6](NO3)3:
3. K4[Fe(CN)6]:
4. Na[Au(CN)4]:...
asked 4 hours ago -
Propose an efficient synthesis of 2-Bromo-5-nitrotoluene from
benzene. Hint: 3 steps. Consider directing effects of substituents....
asked 6 hours ago -
This assignment will explore the impact of corporate decisions
on a local versus a global perspective....
asked 5 hours ago -
Given the function below, F(w,x,y,z)= x’z+w’z’+w’y
a) draw a logic diagram for an implementation which uses...
asked 5 hours ago -
Most political philosophers believe we have a duty to obey laws,
even if the laws in...
asked 6 hours ago