Determine the variables of the following situations whether they involve univariate or bivariate data IDENTIFYING VARIABLESDetermine the variables in the following situations and identify whether they involve univariate or bivariate data.UNIVARIATE ORBIVARIATESITUATIONVARIABLES1. A security guard of a supermarket estimates that on theaverage, the number of customers entering the supermarket'spremises is 85.2. A researcher observed the number of minutes it takes forstudents to answer a worded problem in Math and the numberof hours they spend in studying the subject for a gradingperiod.3. A mother asked her daughters to minimize their electricconsumption so their monthly electric bill will not be high.4. A nutritionist advised her patient that few hours of sleepresults to unhealthy weight gain.5. A secretary recorded the daily number of patients a doctorhas for a month during the General Community Quarantine.

1) Number of customers entering supermarket Univariate. 2) Number of minutes it takes for students…

Answered: Determine the variables in the…

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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A manager believes that the variance of output on the second shift is greater than the variance on the day shift. The following data are collected: 50 samples on the day shift; variance = 500 40 samples on the second shift; variance = 900 Set up hypotheses Perform a test and state your conclusions.
Suppose researchers at an abdominal transplant clinic are concerned about the rate of graft loss due to diabetes status prior to receiving a donor kidney. Research has shown that gender discordance, or receiving a gender from a donor of an opposite gender may increase the risk of both exposure and outcome after transplant. Assume the following tables represent the stratified analysis of the potential confounding variable. (9 points) Gender Discordance Graft Failure No Graft Failure Total Diabetes II 23 10 33 No Diabetes II 4 44 48 Total 27 54 81 Gender Concordance Graft Failure No Graft Failure Total Diabetes II 9 34 43 No Diabetes II 12 87 99 Total 21 121 142 A) Calculate the stratum specific estimates for the odds ratios in each strata. B) Observe the difference in the odds ratios. Based on observation alone, what are we likely to conclude regarding the relationship between outcome and exposure…
Investigation 3.2: Valence Differences Between R&B and Rap Genres (Paired)A music fan claims that R&B songs tend to have a more positive tone on average than do Rapsongs. The individual collected two independent random samples from the population of SpotifySongs. Fifteen R&B songs and another fifteen Rap songs were collected and their Valence wasrecorded. The music fan believed that pairing the song by their Danceability may provideadditional information. Danceability describes how suitable a track is for dancing based on acombination of musical elements including tempo, rhythm stability, beat strength, and overallregularity. A value of 0.0 is least danceable and 1 is most danceable. Thus, the individual pairedthe R&B song with the lowest danceability with the Rap song with the lowest danceability,followed by the second and second, third and third. She continued this process until the R&Bsong with the highest danceability was paired with the Rap song with the…
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