Statistics
posted by Nicole
In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1 to 10. The date follow:
Number of Cups of Coffee 3,2,4,6,5,1,7,3
Stress Level 5,3,3,9,4,2,10,5
Calculate a Pearsons r to determine the type and strength of the relationship between caffeine and stress level.
Determine the regression equation for this correlation coefficient.

Kuai
r = .8519
yhat = 0.411 + 1.216x
Respond to this Question
Similar Questions

Research and Statistics
5. The table below shows Psychology exam scores, Statistics Exam scores, and IQ scores for a random sample of students. What can you observe in the relationship between IQ and psychology, psychology and statistics, and IQ and statistics? 
Statistics
In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. The table shows the survey results. Using a webcalculator, obtain the appropriate … 
statistics
6. In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. The table shows the survey results. Using a webcalculator, obtain the … 
Statistics: Percentile Rank
A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. A. What proportion … 
Statistics: Calculate a Pearson's r
In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their stress level on a scale of 1 to 10. The data are provided in the following table. Number of Cups of Coffee 3, 2, 4, … 
statistics
A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. a. What proportion … 
Statistiscs
Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed. • What proportion of students consume an … 
Statistics
In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. Obtain the appropriate correlation coefficents. 
Stats
1. In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 110. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 … 
statistics
In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 110. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 …