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.
-
On January 1, 2019, ABC Company issued $60,000,000 of 20-year,
10.5% bonds when the market rate...
asked 16 minutes ago -
39.4% of US homes continue to use a landline in addition to cell
phone service. 3...
asked 54 minutes ago -
Starting with benzene, synthesize 1-phenyl-1-butyne.
Show intermediates and reagents.
asked 1 hour ago -
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 2 hours ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 2 hours ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 2 hours ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 2 hours ago -
2. An AC generator has 80 rectangular loops on
its armature. Each loop is 11 cm...
asked 2 hours ago -
Please help me with this question. Consider Aldi’s current and
potential geographic markets (see Exhibit 4...
asked 2 hours ago -
What are the main components of the fermentation process and
give an explanation of each? Include...
asked 3 hours ago -
Explain which types of cells in the body (belonging to which
organs, etc.) are sensitive to...
asked 3 hours ago -
A single cable supports an 703-kg elevator car. What is the
tension in the cable when...
asked 3 hours ago