21) all choices have same drop down menu, first one is already answered please help with 2,3 and 4 What correlation method should be used in the following situations:1) To evaluate whether hot or cold weatherPoint-Biserial Correlationassociated with increased suicide rates2) To evaluate whether company size (e.g.,V [ Choose ]500-999, 1000+ employees) related toPoint-Biserial Correlationcompany revenue.Pearson CorrelationSpearman Correlation3) To evaluate whether higher self-handicapping scores are associated withlower grade point average (GPA).Phi-coefficient4) To evaluate the relationship between[ Choose ]between sex (male/female) and a dental visit(yes/no) in the last twelve months

The choice of associational statistic is dependent on two parameters.

Answered: What correlation method should be used…

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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Which variable pair (in part a or b or c) has a stronger association according to the comparison of the correlations and which variable pair has a stronger association according to the comparison of the p-values? Does the comparisons according to correlation coefficients and p-values agree on which variable pair indicate the same stronger association? If not, why is there such a discrepancy? Which gene pair (in part a or b or c) has a stronger association do you think according to the scatter plots? Part A: Pearson correlation of rb: 0.380875 P-value of pb: 0.0000 Significance level: α = 0.05 So, there is statistically significant association at α = 0.5 between the genes. Also, since the p-value is less than 0.05, the null hypothesis is rejected. Furthermore, the magnitude and direction are that of a positive correlation between the provided genes. Part B: Pearson correlation of rb: 0.380875 P-value of pb: 0.0000 Significance level: α = 0.05 So, there is statistically significant…
11. We can increase the power of a correlational study by ___. Group of answer choices a. using measures with floor or ceiling effects b. using measures that are valid and reliable c. restricting the range of scores for each measure d. only using a very small randsom sample
What is the most likely correlation value for this scatterplot?
Discuss in general the use of the Sign Test for Matched Pairs, Rank-Sum Test and the Spearman Rank Correlation Test.
The National Safety Council released the following data on the incidence rates for fata or lost-worktime injuries per 100 employees for eight industries in three recent years. Compute the covariance between each pair of years (2018 and 2019), (2018 and 2020) and (2019 and 2020). Compute the coefficient of correlation (r) for each pair of years and determine which years are most highly correlated.
A bank records the number of mortgage applications and its own prevailing interest rate (at the first of the month) for each of 16 consecutive months. Is there a correlation between the interest rate (x) and the number of applicants (y), and if so, is it significant at the 5% or the 1% significance level Answer Choices -0.733, significant at 1% -0.652, no significant correlation -0.587, significant at 5% -0.587, significant at 1% -0.652, significant at 5%
Based on a two-tailed t-test,what will be the conclusion of the significance test for this correlation be?
Based on the correlation coefficient between scores on U of W Pain Inventory and the Marlowe-Crowne Reaction Inventory, is the obtained correlation coefficient consistent with the possibility that people with high levels of social desirability tend to say they would not react strongly when presented with a painful stimulus? Hint: Should the correlation coefficient between the Marlowe-Crowne Reaction Inventory and the U of W Pain Inventory be positive or negative if the “tough is socially desirable” hypothesis is true? In answering this question, you may assume that correlations that are less than +/- 0.2 are equivalent to zero.
When analyzing an association between two variables, the size of the correlation may be deceptive because of a.) a spurious association b.) range restriction c.) conflated data d.) poor statistical validity
What is the interpretation of a Pearson's r correlation coefficient of 0.8 in hypothesis testing?
A correlated groups design is more sensitive than an independent groups design if _________. 1. there are large inter-subject differences 2. there are small inter-subject differences 3. the experimental treatment effect is strong 4. there is a high correlation between paired scores
what is the correlation coefficient of stock TATA and BIRLA?

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