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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Suppose you were to collect data for the following pair of variables, drivers: blood alcohol level, reaction time. You want to make a scatter plot. Which variable would you use as the explanatory variable? Blood alcohol or reaction time? Which variable would you use as the response variable? Blood alcohol or reaction time? Would you expect to see a positive or negative association? Or neither?
Listed below are the measured radiation emissions (in W/kg) corresponding to cell phones: A, B, C, D, E, F, G, H, I, J, and K respectively. The media often present reports about the dangers of cell phone radiation as a cause of cancer. Cell phone radiation must be 1.6 W/kg or less. Find the a. mean, b. median, c. midrange, and d. mode for the data. Also complete part e. 0.52 0.76 0.47 1.01 0.21 0.62 0.87 0.83 1.36 1.06 1.38 a. Find the mean. The mean is (Round to three decimal places as needed.) b. Find the median. The median is (Type an integer or a decimal.) c. Find the midrange. The midrange is (Type an integer or a decimal.) d. Find the mode. Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The mode(s) is (are) (Use a comma to separate answers as needed.) Q OB. There is no mode. -C
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On occasion, medical studies need to model the proportion of the population that has a disease and compare that to observed frequencies of the disease actually occurring. Suppose the end-stage renal failure in south-west Wales was collected for different age groups. Do the data in the table show that the observed frequencies are in agreement with proportion of people in each age group? Test at the 1% level. Renal Failure Frequencies Age group 16-29 30-44 45-59 60-74 75+ Total Observed Frequencies 125 152 134 124 48 583 Expected Proportion 0.23 0.25 0.22 0.21 0.09 State the hypotheses.H0: The observed frequencies in agreement with proportion of people in each age group.Ha: The observed frequencies in agreement with proportion of people in each age group. Calculate the χ2 test statistic. Round expected values to two decimal places. Round χ2 to 3 decimal places.χ2 = Calculate the p-value. Round to 3 decimal places.p-value = State your decision.Since p-value α,…
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Listed below are the measured radiation emissions (in W/kg) corresponding to cell phones: A, B, C, D, E, F, G, H, I, J, and K respectively. The media often present reports about the dangers of cell phone radiation as a cause of cancer. Cell phone radiation must be 1.6 W/kg or less. Find the a. mean, b. median, c. midrange, and d. mode for the data. Also complete part e. 0.32 1.49 1.41 0.27 1.08 0.77 0.55 0.22 1.17 1.28 1.06 a. Find the mean. The mean is (Round to three decimal places as needed.) ... n
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Listed below are the measured radiation emissions (in W/kg) corresponding to cell phones: A, B, C, D, E, F, G, H, I, J, and K respectively. The media often present reports about the dangers of cell phone radiation as a cause of cancer. Cell phone radiation must be 1.6 W/kg or less. Find the a. mean, b. median, c. midrange, and d. mode for the data. Also complete part e. 0.45 0.77 0.72 0.68 1.53 1.28 0.75 0.99 0.55 0.56 1.12 --..- a. Find the mean. The mean is . (Round to three decimal places as needed.)
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