JUST QUESTION 9 PLEASE Here are some formulas to help:SP=EXY –'-ΣΧΣΥr =SS =Ex² Ex}SS, =Er? _EY)?SS SS,nNnUse this set of data to answer questions #1 - #17. You are conducting a correlational study.ParticipantYXYX2Y2A2413366E42F54G222. What is your null hypothesis? (in words)3. What is your alternative hypothesis? (in statistical notation)4. What is your alternative hypothesis? (in words)5. How many participants are in your study?6. What is the value of Sum of Products (SP)? (SHOW YOUR WORK)7. What is the value of SSx? (SHOW YOUR WORK)8. What is the value of SSy? (SHOW YOUR WORK)9. Calculate the Pearson Correlation Coefficient (r): (SHOW YOUR WORK)

Given that X Y X \cdot YX⋅Y X^2X2 Y^2Y2 2 4 8 4 16 1 3 3 1 9 3 3 9 9 9 6 6 36…

Answered: 9. Calculate the Pearson Correlation…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2AGP

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Respiratory Rate Researchers have found that the 95 th percentile the value at which 95% of the data are at or below for respiratory rates in breath per minute during the first 3 years of infancy are given by y=101.82411-0.0125995x+0.00013401x2 for awake infants and y=101.72858-0.0139928x+0.00017646x2 for sleeping infants, where x is the age in months. Source: Pediatrics. a. What is the domain for each function? b. For each respiratory rate, is the rate decreasing or increasing over the first 3 years of life? Hint: Is the graph of the quadratic in the exponent opening upward or downward? Where is the vertex? c. Verify your answer to part b using a graphing calculator. d. For a 1- year-old infant in the 95 th percentile, how much higher is the walking respiratory rate then the sleeping respiratory rate? e. f.
If o̟ = 0,-0 and the angle between the regression lines is tar! Find the 3 0.. = coefficient of correlation.
1) Match each of the five scatterplots to the appropriate correlation coefficient and equation of regression line. Explain how you know that you have made a correct match. a. r= 0.83, y= -2.1 + 1.4x d. r= -0.83, y = 11.8 – 1.4x b. r= -0.31, y = 7.8 – 0.5x e. r= 0.41, y=1.4 + 1.4x c. r= 0.96, y= -2.1 + 1.4x Scatterplot 1 Scatterplot 2 Scatterplot 3 Scatterplot 4 Scatterplot 5
Two regression lines of a sample are X+6 Y=6 and 3X+2Y=0. Find the correlation coefficient.
The regression lines between two random variables X and Y is given by 3X + Y = 10 and3X + 4Y = 12 .Find the correlation between X and Y.
Where does the spurious correlation exist?
There is a dataset of size n = 51 and is for the 50 states and the District of Columbia in the United States. The dependent variable is year 2002 birth rate per 1000 females 18 to 19 years old and independent variable is the violent crime rate (per 1000 population). A simple linear regression model is run with the results given below. What is the Pearson correlation coefficient between x and y variables? The R squared of the model? What kind of relationship there is?
Pearson's Correlation Coefficient of two variables is -0.02. What does it indicate in terms of relationship between these two variables?

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