Janice and Paul did a study on feelings of stress and life satisfaction. Participantscompleted a measure on how stressed they were feeling (on a 1 to 30 scale) and ameasure of how satisfied they felt with their lives (measured on a 1 to 10 scale). Thetable below indicates the participants' scores. Using this data, answer the followingquestions:Participant #123456700910ΣMeanSDStress score (X) Life Satisfaction(Y)7111251972361122251015915.97.2349288336515.12.70 a) Based on the table above, calculate the correlation (r) between stress and lifesatisfactionb) Write a brief interpretation of the correlation in 13(a), including the strength,direction, and an explanation of the effect.

The question is about correlation Given : To find : a ) Correlation between stress score and life…

Answered: Janice and Paul did a study on feelings…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Chicago Cubs win an average of 56.8% of all their games. How should this data be classified? A. None of these Options B. Quantitative C. Qualitative D. Categorical
In a typical set of numerical data, what fraction of the data values lie above Q3?
Data was collected for a sample of organic snacks. The amount of sugar (in mg) in each snack is summarized in the histogram below. Frequency 10 8 6 4 2 100 101 102 103 104 105 106 10 amount of sugar (mg) What is the frequency of 102 mg of sugar? snacks
Find the 5 number summary for the data shown 13 24 27 28 38 45 46 48 52 78 84 90 5 number summary: Use the Locator/Percentile method described in your book, not your calculator. Add Work Check Answer
What is the correct answer?
Find the 5 number summary for the data shown 17 21 29 30 36 42 56 60 88 91 94 97 5 number summary:Use the Locator/Percentile method described in your book, not your calculator.
A study was conducted to examine the impact of speaking in public on college students. A class of 15 statistics students participated in the study. At the beginning of a lecture the students recorded their systolic blood pressure. During the lecture the instructor called on each student to stand and answer questions about topics in the lecture. After speaking the students once again recorded their blood pressure. The resulting values are given below along with summary statistics. before 100 123 128 125 136 108 130 113 105 136 146 138 108 149 132 after 141 142 146 136 144 111 132 114 103 133 140 130 100 133 113 difference -41 -19 -18 -11 -8 -3 -2 -1 2 3 6 8 8 16 19 before after difference mean 125.1 127.9 -2.733 st dev 15.26 15.45 15.23 Does this information indicate that blood pressure increased because of speaking? Conduct an appropriate hypothesis test and show appropriate steps. Let μ1 mean systolic blood pressure before speaking in public, and μ2 mean…
Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 5 1 9 2 6 3 4 4 1 Table 2.67 Construct a histogram of the data. Complete the columns of the chart.
Your assignment is to survey 10 people (friends, family, peers, etc.) and collect data for the following dependent measure:
The authors of a paper were interested in how the distance a deer mouse will travel for food is related to the distance from the food to the nearest pile of debris. Distances were measured in meters. The data and computer output are given below. Distance from Debris Distance Traveled 6.94 0.00 5.23 6.13 5.21 11.29 7.10 14.35 8.16 12.03 5.50 22.72 9.19 20.11 9.05 26.16 9.36 30.65 Simple Linear Regression Results: Dependent Variable: Traveled Independent Variable: Debris Sample size: 9 R (correlation coefficient) = 0.5657 R-sq = 0.32002088 Estimate of error standard deviation 8.670711 Parameter estimates: Parameter Estimate Std. Err. Alternative DF T-Stat P-Value Intercept -7.6854587 13.332196 ≠ 0 7 -0.5764586 0.5824 Slope 3.2340908 1.7818117 ≠ 0 7 1.8150575 0.1124 a)What is the least squares regression line for the output given above? b) what is the predicted traveled distance given the distance from debris is 6.5 meters?
Find the 5 number summary for the data shown 25 44 45 46 56 57 62 86 90 93 95 96 99 5 number summary:, , , , Use the Locator/Percentile method described in your book, not your calculator.
A sample of students in a university café was asked the following questions. Identify the type of data for each question. c. Do you have children under the age of 10 living in your house?d. Indicate your level of satisfaction with the food quality (very satisfied; moderately satisfied; neutral; moderately dissatisfied; very dissatisfied).

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