A researcher wants to determine the relationship between the time spent studying and the scores on a test. They have collected data from 50 students and calculated Pearson's r correlation coefficient to be 0.75. What can the researcher conclude about the relationship between the time spent studying and the test scores based on this value of Pearson's r?

Q: A researcher finds that the correlation between income and a scale measuring interest in work is…

A: Given: Variables:  1. Income 2. Interest in work r1: 0.55; p>0.05 r2: 0.46; p<0.001

Q: A used car dealership has many different cars for sale. Although many things impact the price of the…

A: Given Information: The correlation between the two is moderate and negative, with r = -0.6. A…

Q: Officer James has noticed a strong positive correlation between the speed of the vehicles on Main…

A: The best experiment for given problem out of given options is, Officer James could view traffic…

Q: A researcher wants to examine the relationship between height and weight in a sample of 100…

A: The sample correlation coefficient between height and weight is given as r=-0.63. The sample size…

Q: Suppose that the correlation between the scores of students on Exam 1 and Exam 2 in a statistics…

A: We have given that  Correlation=r=0.7 Find coefficient of determination

Q: The stronger the relationship between the two variables, the closer the correlation coefficient is…

A: Correlation coefficient is a measure of relationship between two variables. It is denoted by ‘r’ and…

Q: Dr. Bad Bunny has calculated a correlation between the number of cigarettes smoked per week and the…

A: The strength and direction of linear relationship between two variables is measured by correlation.

Q: A random sample of college students was surveyed about how they spend their time each week.  The…

A: Given  correlation=r=-0.63  Given predicted value spent watching TV=0.23

Q: It is possible to calculate a correlation coefficient if you have which of the following? a. two…

A: Correlation coefficient is a measure which indicates the strength or association between two…

Q: Based on the attached picture, do people getting high pain scores on the U of W scale rate the cold…

A: In the given problem, there are two variables under study in this question-  U of W pain scale rate…

Q: A researcher computes the correlation coefficient r =r= -0.3700 for an explanatory and response…

A: Given r=-0.3700

Q: Data were obtained about men belonging to a gym. The men had an average height of 69 inches with an…

A: The question is about regression.Given :Average height of men (  ) = 69 inches.Standard deviation of…

Q: An amusement park sales director is interested in predicting the number of beverages purchased based…

A: Here an amusement park sales director is interested in predicting the number of beverages purchased…

Q: of cups of any caffei beverage they ingest during the following day. The Pearson r-value result…

A: Correlation is defined as the linear relationship between the two variables. The range of the…

Q: By using the following data, find out the two lines of regression and from them com- pute the Karl…

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Q: depression 70.00- 60.00 32.00- 20.00- 13.00- 12.00- 11.00- 10.00- 9.00- 8.00- 7.00- 6.00- 1.00 O O O…

A: This question examines the potential issues associated with a scatterplot of data showing scores of…

Q: A set of n=4 of X and Y scores produces a Pearson correlation of r=0.20.The x values vary from…

A: Given that A set of n=4 of X and Y scores produces a Pearson correlation of r=0.20.The x values vary…

Q: A used car company believes that there is a relationship between the amount spent on advertising and…

A: The table shows the amount spent on advertising and its sales.

Q: In performing regression analysis between the age of a car and the cars value, you calculate the…

A: To answer this question we have to know  1.What is correlation 2.Types of correlation and…

Q: Assume that you have paired values consisting of heights​ (in inches) and weights​ (in lb) from 40…

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Q: a pearson correlation value (r) indicates the exact degree of accuracy in which a researcher can…

A: Pearson Correlation Coefficient r is a measure which indicates the strength of a linear association…

Q: A researcher conducted a Pearson's r test to examine the relationship between study hours and exam…

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Q: People often wonder which has the greater relationship with body weight, daily calories, or daily…

A: Here absolute value of correlation are above 0.5. Thus both the variables have strong correlation…

Q: A teacher records the scores on a midterm quiz and on the final exam for 8 of her students. She…

A: Given that a teacher records the scores on a midterm quiz and on the final exam for 8 of her…

Q: A statistician finds a Pearson correlation of r = 0.29. What does this correlation tell us about the…

A: We have given Pearson correlation of r = 0.29

Q: A sociologist is studying the relationship between income and farm production in California’s…

A: Given information Correlation between income and farm production is 0.43

Q: Researchers found a correlation coefficient of r = .50 on personality measures for identical twins.…

A: The objective of the question is to understand if the interpretation of the correlation coefficient…

Q: Suppose you are examining the correlation between two quantitative variables, and the correlation,…

A: The objective is to determine the condition for which, the correlation coefficient, r which is…

Q: Given that SSxx=213, SSyy=176, and SSxy=180, What is the value of the correlation coefficient?…

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Q: When interpreting a correlation coefficient of 0.34, you would say that there is a linear…

A: Based on the r value, we can consider whether the linear relationship between two variables are weak…

Q: The Pearson's r correlation between two variables X and Y is calculated to be 0.6. What can be…

A: Introduction: The task at hand is to examine the meaning of a Pearson's r correlation coefficient of…

Q: 5. Imagine we collect data from 132 people. Each person writes two tests (test 1, correlation…

A: question:

Q: would you conduct a correlation coefficient after gathering the data? Why or why not?

A: Correlation  coefficient  definition  :  Correlation  coefficient is measure of extent of linear…

Q: Based on what you know about correlation, which one of the following statements must be incorrect? O…

A: Correlation shows the relation between the two variables. It can shows positive and negative…

Q: A random sample of college students was surveyed about how they spend their time each week.  The…

A: Correlation is a useful association statistic.

Q: The table below gives the age and bone density for five randomly selected women. Using this data,…

A: Answer Given X        37           40              52          60            67Y       352…

Q: ssume that Pearson’s r equals -.43 (negative .43) for the relationship between years of heavy…

A: Given: Correlation coefficient = -0.43 Two variables are heavy smoking and life expectancy.

Q: There is a correlation between the number of hours you study for an Exam and a higher score. The…

A: The given data is: Number of hours studies Scores earned on test 1 65 4 88 3 80 0 63 5…

Q: You calculate a correlation coefficient of -0.8 for the two characteristics of eating a particular…

A: Correlation coefficient is a method the asses the strength of the relation between 2 variables.…

Q: The table below gives the number of weeks of gestation and the birth weight (in pounds) for a sample…

A: Given information: x y X^2 Y^2 XY 33 5 1089 25 165 35 6.8 1225 46.24 238 37 7.9 1369 62.41…

Q: The result for a Pearson’s r between students’ test scores and their motivation was, r(24) = .32, p…

A: It is given that the correlation coefficient is 0.32 and the p-value is 0.07.

Q: What does a correlation coefficient of 2​ indicate? There is a weak relationship between the two…

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Q: Answer the following questions with complete sentences. When you have finished everything, submit…

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Q: Yessica thought that there was a correlation between the amount of time students slept the evening…

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Q: A survey was taken in 2018 that asked people about their saving habits. Researchers wanted to know…

A: Correlation: The extent linear relation between the two variables is called correlation. Positive…

Q: You are interested in knowing whether wealthier people are happier. You collected data from fifty…

A: A study was conducted to find out if wealthier people are happy or not.The value of the correlation…