Compute the Pearson correlation for the following data. X Y 2 3 3 5 4 5 A researcher is interested in seeing if there is a significant relationship between the number of hours of sleep a night (X) and Productivity scores (Y). She conducts a study to test her hypothesis. Please use the data set above. a. Use a two-tailed test with a= .05. Conduct the four steps for hypothesis testing and label each step: Stepl, Step 2, Step 3, and Step 4. b. Write a sentence regarding your results. c. Calculate the regression equation for this data set. d. What are the predicted Y scores for the following X scores: X=1, X=7, X=10, X=12. 14242

Compute the Pearson correlation for the following data. X Y 2 3 3 5 4 5 A researcher is interested in seeing if there is a significant relationship between the number of hours of sleep a night (X) and Productivity scores (Y). She conducts a study to test her hypothesis. Please use the data set above. a. Use a two-tailed test with a= .05. Conduct the four steps for hypothesis testing and label each step: Stepl, Step 2, Step 3, and Step 4. b. Write a sentence regarding your results. c. Calculate the regression equation for this data set. d. What are the predicted Y scores for the following X scores: X=1, X=7, X=10, X=12. 14242

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of α=0.05. If everyone were to tip with the same percentage, what should be the value of r? Bill (dollars) 33.25 50.89 88.90 103.74 62.59 106.83 Tip (dollars) 4.00 4.60 11.73 14.46 6.71 16.29 Construct a scatterplot. Choose the correct graph below. A. 30120025Bill Amount ($)Tip Amount ($) A scatterplot has a horizontal axis labeled Bill Amount in dollars from 30 to 120 in increments of 10 and a vertical axis labeled Tip Amount in dollars from 0 to 25 in increments of 5. Six plotted points follow the pattern of a curve falling from left to right passing through the…
Can you please answer this completely and typewritten? I promise that I will upvote. Thank you and much appreciated.
Read through this scenario and look at the data that was collected. State the null and all possible research hypotheses. Review the results below (I used SPSS) and answer the questions that follow. Scenario: A researcher wants to see if gender and / or income affects the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help. The independent variables are gender, income, and the interaction of gender and income. The dependent variable is total help. He wants to know if one or both factors – or the interaction of the two - affects the total amount of help offered. Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA. His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect. The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…
If you can do it typewritten with complete details, i'll upvote. No upvote for handwritten.
Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.01. If everyone were to tip with the same percentage, what should be the value of r? 93.68 Bill (dollars) Tip (dollars) 30.46 48.91 90.03 64.35 104.74 O 3.59 8.21 8.36 14.33 12.70 17.38
The scatterplot below shows the relationship between two random variables X and Y. Is the correlation a good metric for describing the relationship between X and Y for these data? Why or why not? Regardless of your answer to part (a), suppose you calculated the sample correlation between X and Y and found that r = -0.15. Explain in one sentence what this means. If, as noted in (b), r = -0.15 then what is the value of the correlation between 2X and 5Y? Based on (b) draw your best approximation to the least squares regression line that fits the data above. Also, make a rough sketch of the corresponding residual plot. (The sketches do not have to be beautiful but they have to covey the correct information.)
Follow the instructions. Typewritten for an upvote. No upvote for handwritten. PLEASE SKIP IF YOU HAVE ALREADY DONE THIS. Thank you
Place the steps of conducting a correlation hypothesis test in order.Match each step on the left with the procedure at that step on the right. Step 1 2 3 4 5 6 7 Todo A. find the critical value from the table B. conclude there is a linear correlation or not sufficient evidence to conclude there is a linear correlation C. compare the absolute value of the test statistic to the critical value D. write null and alternative hypotheses E. reject or fail to reject the null hypothesis F. select a significance level alpha G. find the value of r (correlation coefficient) from your calculator
Q2
Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.05. If everyone were to tip with the same percentage, what should be the value of r? Bill (dollars) Tip (dollars) Tip Amount ($) Construct a scatterplot. Choose the correct graph below. O A. 25- 30 C ● ·· Bill Amount (S) 32.25 49.72 87.12 101.52 66.52 104.21 4.25 7.70 7.90 11.83 7.08 11.35 120 Q M O B. Tip Amount ($) 25- ++++ 30 .. Bill Amount (S) 120 Q Q M C O C. Tip Amount ($) 25- 0+ 30 ● ·· Bill Amount ($) 120 Q Q O D. ip Amount ($) 25- to 0- 30 · Bill Amount (S) 120 Q Q U
Compute the Pearson correlation for the following data.X: 2, 3, 6, 4, 5 Y :3, 1, 5, 4, 2 A researcher is interested in seeing if there is a significant relationship between the number of hours of sleep a night (X) and Productivity scores (Y). She conducts a study to test her hypothesis. Please use the data set above. Use a two-tailed test with a = 0.1. Conduct the four steps for hypothesis testing and label each step: Step1, Step 2, Step 3, and Step 4.
Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of α=0.01. If everyone were to tip with the same percentage, what should be the value of r? Bill (dollars) 34.14 47.51 85.27 88.36 66.73 105.33 Tip (dollars) 3.51 5.55 16.44 17.42 6.69 13.97