Question

find B^1 for the five-point data set:

Question 4 1 pts Find , for the five-point data set: X: 226 8 10 y: 01233 01.29 O2.48 O 0.992 O 0.344 1.54 Question 5

0 0
Add a comment Improve this question Transcribed image text
Answer #1
X Y XY
2 0 0 4 0
2 1 2 4 1
6 2 12 36 4
8 3 24 64 9
10 3 30 100 9
Ʃx = 28
Ʃy = 9
Ʃxy = 68
Ʃx² = 208
Ʃy² = 23
Sample size, n = 5
x̅ = Ʃx/n = 28/5 = 5.6
y̅ = Ʃy/n = 9/5 = 1.8
SSxx = Ʃx² - (Ʃx)²/n = 208 - (28)²/5 = 51.2
SSyy = Ʃy² - (Ʃy)²/n = 23 - (9)²/5 = 6.8
SSxy = Ʃxy - (Ʃx)(Ʃy)/n = 68 - (28)(9)/5 = 17.6

Slope, b = SSxy/SSxx = 17.6/51.2 = 0.344

Answer: 0.344

Add a comment
Know the answer?
Add Answer to:
find B^1 for the five-point data set: Question 4 1 pts Find , for the five-point...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 0.35 Question 4 1 pts Find Quartiles for the following set of data 4, 8, 12,...

    0.35 Question 4 1 pts Find Quartiles for the following set of data 4, 8, 12, 18, 20, 22, 26, 30 O Q1 10, Q2 19, Q3 24 O Q1 4, Q2 20, Q3 30 O Q1 12, Q2 20, Q3 26 O Q1 -8, Q2 20, Q3 36 Question 5 1 pts Find the Median for the following set of data: 25, 20, 8, 10, 28, 16, 22, 15 O 22 O 19 O 18 O 25 1 pts...

  • Question 4 0.5 pts A data set has a mean of 44. In this data set,...

    Question 4 0.5 pts A data set has a mean of 44. In this data set, a raw score X-40 corresponds to the standardized score z-1. What is the standard deviation for this data set? Hint:take advantage of the formula for Z-score Question 5 0.5 pts A data set has a standard deviation of 2.5. In this data set, a raw score X-30 corresponds to the standardized score z = 1.30. What is the mean of this data set? Hint:take...

  • Question text Suppose that you have a five-point sample data set; the observations of (x, y)...

    Question text Suppose that you have a five-point sample data set; the observations of (x, y) are given by (8, 3), (10, 3), (6, 2), (2, 0), and (2, 1). Fit a simple linear regression model to this data by first computing the least squares estimate of the slope parameter. Which of the following is the most accurate? Select one: a. 0.3438 b. 0.4728 d. 0.6712

  • Step 1 Data Set A- 7,7,7,9,9,9,10 Data Set B- 4,6,6,6,8,9,9,9,10,10,10 Step 1 Find the sample mean,...

    Step 1 Data Set A- 7,7,7,9,9,9,10 Data Set B- 4,6,6,6,8,9,9,9,10,10,10 Step 1 Find the sample mean, median (if it exists) mode for each set of data Next find the sample standard deviations for each set of data Eliminate any outliers from the samples. Redo part 1 for each variable (if necessary, if not explain why). Compare your two sets of results. What happened to your averages? Standard deviations? Etc. Write a brief explanation of what you found in the data....

  • Find Lease Squares Regression Line (LSRL) equation for the following five- point data set step by...

    Find Lease Squares Regression Line (LSRL) equation for the following five- point data set step by step X 2 6 8 10 Υ 1 2 3 4 26 ν Σα2 = (Select] Σy = 10 Σ y = (Select] [Select] Σ α) = ν [Select] T Σ» ΕΙ Π Κ. [Select] < SS.x2 = I x2 - ( x) = [Select] < SSxy = {xy - 1(x) ( y) = (Select ] < SSyy = < y2 - ( y)2...

  • Question 2 (1 point) The set B below is a basis for P2. Find the coordinate...

    Question 2 (1 point) The set B below is a basis for P2. Find the coordinate vector of p(t) 3+t - 6t relative to B = {1-tt-t,2 – 2t+t} O 7 -3 o co 1 6 O 3 t 6t O 13 -10 Question 3 (2 points) Let A be the matrix defined below. -8 8 -8 1 -9 7 -7 7 4 3 A= 6 -9 4 9 -4 5 -5 5 6 -1 -7 -7 -7 0 Suppose...

  • Question 1 1 pts question 1- based on the sample data summarized by the following information:...

    Question 1 1 pts question 1- based on the sample data summarized by the following information: n = 5, L r = 25, x2 = 165 Sy=24, y = 134, ry=144 1<x<9 1. Compute the linear correlation coefficient r- 0.875 0.635 0.576 O 0.738 0.925 Question 2 1 pts 2. The least squares regression line equation for this data should be 0.6.0 + 1.8 y = -0.63 +1.8 O j = 0.62 - 1.8 y = -0.6 - 1.8 Question...

  • This Question: 4 pts 2 of 5 (0 complete) This Quiz: 25 pts possible Find the...

    This Question: 4 pts 2 of 5 (0 complete) This Quiz: 25 pts possible Find the equation of the regression line for the given data. Round values to the nearest thousandth. 0 2 3 - 4 -8 9 1-2 -6 -1 3 6 - 8 X 1 - 1 -2 -5 -3 - 10 у O A 9-0.552x + 2.097 OB. Y=0.522x-2.097 oc. = 2.097x + 0.552 OD. 9 -2.0978 -0.552

  • QUESTION 1 • 1 POINT The following frequency table summarizes a set of data. What is...

    QUESTION 1 • 1 POINT The following frequency table summarizes a set of data. What is the five-number summary? Value Frequency 2 3 3 2 5 6 3 7 1 8 نطاليا 11 Select the correct answer below: O Min Q1 Median Q3 Max

  • > Question 14 0/4 pts 5 4 98 Details You have a set of data that...

    > Question 14 0/4 pts 5 4 98 Details You have a set of data that you have labeled as x (explanatory) and y (response). You run summary statistics and get the following. Both variables are quantitative. Summary Statistics Column n Mean Variance Std dev Std error Median Min Max 13 30.615 214.256 14.638 4.06 25 13 55 у 13 4.846 6.641 2.577 0.715 5 -0 9 х Correlation between x and y is 0.588 What is the equation of...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT