Question

Questions 2-7 will all be in regards to this data set: Observation X Y 1 20...

Questions 2-7 will all be in regards to this data set:

Observation X Y
1 20 30
2 23 35
3 28 40
4 26 38
5 24 37
6 32 45
7 35 50
8 24 34
9 31 42
10 23 32

What is the Pearson's coefficient of correlation for the data set above?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1


The statistic software output for this problem is:

X Y XY X^2 Y^2
20 30 600 400 900
23 35 805 529 1225
28 40 1120 784 1600
26 38 988 676 1444
24 37 888 576 1369
32 45 1440 1024 2025
35 50 1750 1225 2500
24 34 816 576 1156
31 42 1302 961 1764
23 32 736 529 1024
n 10
sum(XY) 10445.00
sum(X) 266.00
sum(Y) 383.00
sum(X^2) 7280.00
sum(Y^2) 15007.00
Numerator 2572.00
Denominator 2628.83
r 0.9784
r square 0.9572
Xbar(mean) 26.6000
Ybar(mean) 38.3000
SD(X) 3.8188
SD(Y) 4.5735
b 1.2583
a 4.8288

the Pearson's coefficient of correlation = 0.9784

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
For each of the data sets provided below, calculate the mean, median, mode, and standard deviation....
For each of the data sets provided below, calculate the mean, median, mode, and standard deviation. 1) Data Set 1: 23, 26, 50, 39, 55, 64, 50, 10, 42, 35, 51, 42, 43, 56, 64, 48, 48, 57, 27, 37 2) Data Set 2: 26, 31, 10, 37, 38, 35, 30, 24, 26, 27, 24, 32, 32, 19, 34, 33, 14, 32, 24, 39, 30
Here is a bivariate data set. x y 17 85 36 -0 32 -7 37 11...
Here is a bivariate data set. x y 17 85 36 -0 32 -7 37 11 56 -50 18 87 40 3 5 64 24 28 Find the correlation coefficient and report it accurate to four decimal places. r =
Dataset: Husband   Wife 53   50 38   34 46   44 30   36 31   23 26   31 29  ...
Dataset: Husband   Wife 53   50 38   34 46   44 30   36 31   23 26   31 29   25 48   51 65   46 29   26 28   23 29   32 25   22 22   21 21   24 43   50 24   27 38   33 33   26 35   29 40   29 27   25 27   24 49   38 48   39 27   27 26   24 40   34 35   37 21   26 32   39 30   28 60   52 36   40 25   23 66   55 52   34 41   40 43  ...
using the following data set, create a box plot for this question. 17, 32, 27, 14,...
using the following data set, create a box plot for this question. 17, 32, 27, 14, 18, 34, 16, 41, 28, 24, 40, 26, 23, 31, 37, 21, 30, 28
descriptive statistics for the given data 4 8 18 20 21 22 23 24 25 26...
descriptive statistics for the given data 4 8 18 20 21 22 23 24 25 26 27 28 29 30 31 31 32 32 33 33 34 35 36 37 38 39 47 53
Here is a bivariate data set. x y 38 12 36 19 26 -17 36 35...
Here is a bivariate data set. x y 38 12 36 19 26 -17 36 35 40 35 44 48 43 23 25 26 47 62 48 53 Find the correlation coefficient and report it accurate to four decimal places. r =
Using the data from question 1, create a frequency table and a histogram in Microsoft® Excel®....
Using the data from question 1, create a frequency table and a histogram in Microsoft® Excel®. QUESTION 1 DATA- enter the following data from the 40 participants by first creating a variable labeled “Score”. Next, compute the mean, median, and mode for the following set of 40 reading scores: 31 32 43 42 24 34 25 44 23 43 24 36 25 41 23 28 14 21 24 17 25 23 44 21 13 26 23 32 12 26 14...
6) [True or False] Standard deviation can be negative. A) TRUE B) FALSE 7. A random...
6) [True or False] Standard deviation can be negative. A) TRUE B) FALSE 7. A random sample of 40 college professors is selected from all professors at a university. The following list contains their ages. 65, 45​, 44​, 38, 55​, 55​, 49​, 42​, 43​, 22​, 52​, 58​, 52​, 38​, 56​, 34​, 53​, 36​, 50​, 36                          34​, 68​, 43​, 56​, 37​, 35​, 28​, 30​, 26​, 26​, 53​, 30​, 37​, 55, 28​, 39​, 26​, 31​, 37​, 50 Z score for 55 is?
The results of a sample of 372 subscribers toWiredmagazine shows the time spent using the Internet...
The results of a sample of 372 subscribers toWiredmagazine shows the time spent using the Internet during the week. Previous surveys have revealed that the population standard deviation is 10.95 hours. The sample data can be found in the Excel test data file. What is the probability that another sample of 372 subscribers spends less than 19.00 hours per week using the Internet? Develop a 95% confidence interval for the population mean If the editors of Wiredwanted to have the...
2. In a country called Karpee's Nation, Sixty (60) persons were asked about their ages in...
2. In a country called Karpee's Nation, Sixty (60) persons were asked about their ages in completed years and they responded as follow: 34 34 40 42 40 42 29 30 28 44 25 37 37 42 29 33    34 29 43 41 25 40 37 33 32 37 40 51 28 27 31 64    38 40 30 41 51 30 48 24 28 33 35 40 31 29 35 46 27 34 28 29 35 30 29...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT