What is the error in the analysis for the following statement: "Studies show a strong correlation between high blood pressure and cholesterol in the bloodstream. Researchers can conclude that having high blood pressure is a cause of increased blood cholesterol"? *

Q: In conclusion, what can we say regarding Spearman Rank Correlation Coefficient?

A:

Q: When conducting a significance test for correlation, if your null and alternative hypothesis are:…

A: Test is that whether or not the correlation is significant.

Q: Could you please help me understand the difference between a z-test and a t-test for in statistics?

A: Both the tests are useful to test the significance of means.Both the tests are assume a normal…

Q: IQ scores for subjects with medium lead levels in their blood and another sample of subjects with…

A: Mann-Whitney U test: The Mann-Whitney U test is non-parametric statistical method that is used for…

Q: would it make sense to say this is a correlational study because variables were not manipulated and…

A: There are two types of study involve in the survey, they are correlation and experimental study.…

Q: The XYZ company wants to see if interview scores predict job performance scores. So it goes back…

A: The claim is to check whether there is a relationship between employee interview scores and employee…

Q: Which correlation is most likely a causation? the positive correlation between the wait time for the…

A: Two quantities or characteristics may appear to be correlated but correlation does not always imply…

Q: Why should you be cautious when interpreting a correlation?

A: cautious when interpreting a correlation

Q: What is the difference between correlation and causation?

A: Correlation: Correlation analysis is used to measure the strength of the association between…

Q: Who is most likely to have prevalent coronary heart disease? People who are older and have higher Bp…

A: Introduction: Five independent samples t-tests have been conducted to compare the two groups,…

Q: What statistical tool should be used for the problem?  An insurance company wants to determine the…

A: We need to identify suitable statistical tool

Q: When participants with high self-concept scores have relatively low depression sores, what type of…

A: Correlation Analysis contributes to the understanding of economic behaviour, aids in locating the…

Q: If the Pearson correlation coefficient for two variables is 0.00 can we definitively say that no…

A: The Pearson correlation coefficient defined the relationship between two quantitative variables and…

Q: What does it mean when the difference is statistically significant?

A: STATISTICALLY SIGNIFICANT MEANS NULL HYPOTHESIIS IS REJECYED.

Q: Does correlation imply causation? Why or why not?

A: Correlation indicates degree to which two variables are linearly related.

Q: Can we say that there is a significant negative correlation among the data? (a = .10)

A: To test that if there is a significant negative correlation among the data, first we have to…

Q: Hello, What is the difference between a correlation coefficient and the coefficient of…

A: Correlation:Correlation a measure which indicates the “go-togetherness” of two data sets. It can be…

Q: why we do not prefer to apply the spearman correlation on the quantitative variables ?

A: Correlation is finding a degree of relationship between two variables. If one variable influences…

Q: Consider the following scenario: you want to investigate the relationship between the number of…

A: Here we want to see if there is a relationship between 'likes' on Facebook and 'number of friends'…

Q: The correlation between "trust in the government to take care of its citizens" and worry about one's…

A: If the p-value is low (< 0.05), then the correlation is statistically significant. Here the…

Q: Does a high positive correlation between smoking and lung cancer and prove that one cause to…

A: Introduction: Correlation: Correlation is a measure of the strength of linear association between…

Q: 3. The effectiveness of Prilosec for treating heartburn is tested by measuring gastric acid…

A: Here given test the effectiveness of prilosec for treating heartburn is tested  For this test…

Q: 4. Carry out and state the conclusion of your test on the correlation.

A: If the change in one variable affects the change in other variable, then it can be said two…

Q: What information is provided by the numerical value of the Pearson correlation?

A: From the given question, Correlation coefficient:

Q: 11. What is the value of Spearman's correlation coefficient for the association between chocolate…

A: Given chocolate consumption(R1) nobel prize (R2) 4.5 5.5 8.5 24.4 4.4 8.6 2.9 0 3.9…

Q: What are the assumptions for t test for the population correlation coefficient?

A: Correlation: Correlation is the measure of association between two variables in which one variable…

Q: Why should one be cautious when interpreting a correlation?

A: Why should one be cautious when interpreting a correlation?

Q: The researcher believes that happy workers are more productive workers. So he administers a job…

A: It is given that the researcher believes that happy workers are more productive workers.

Q: As sample size gets smaller, what happens to the magnitude of the correlation necessary for…

A: Magnitude of Correlations is the absolute value of r which represents the strength of association.…

Q: 1. does correlation imply causation? 2. Why are correlation important to statistics?

A:

Q: A psychological study wants to analyze the relationship between anxiety and binge drinking; a…

A: Chi-square independence test: The chi-square is a non-parametric test which is used for comparing…

Q: A high correlation between two variables does not always mean that changes in one cause changes in…

A: Correlation,  is a statistic that measures the degree to which two securities move in relation to…

Q: What is the empirical rule?

A: The word 'empirical' stands for 'based on observations.  The 68–95–99.7 rule, also known as the…

Q: 2) A researcher suspects that there is a relationship between substance use and sexual activity…

A: In statistics, for analysis purposes, we collect the data. According to the objective of the survey…

Q: In analyzing the data, a researcher notes that as employee absences increase, scores on performance…

A: Given,  A researcher notes that as employee absences increase, scores on performance evaluations…

Q: Suppose that you want to do statistical significance tests for four correlations and you want your…

A: It is given that the number of correlation is 4 and EWa is 0.05.

Q: If you wish to run a hypothesis test to see if the mean cholesterol level is more than 200 mg/dL,…

A: Test is that whether mean cholesterol level is more than 200 mg/dL.

Q: Suppose a researcher found that the correlation between a test he or she developed and job…

A: Introduction: Suppose r is the sample correlation coefficient between two variables, based on a…

Q: Which of the following is an accurate definition for the power of a statistic test?

A: Power of a statistical test is the chance of rejecting the null hypothesis when the null hypothesis…

Q: For this research situation, what statistical procedure would most likely be used to answer the…

A: Dependent 't' test : The paired t-test, commonly known as the paired-samples t-test, is a type of…

Q: Are there ever any circumstances when a correlation such as Pearson’s r can be interpreted as…

A: Correlation: Correlation a measure which indicates the “go-togetherness” of two data sets. It can be…

Q: 1. Does correlation imply causation?

A: It is an important part of statistics. It is widely used.

Q: ANOVA does the following EXCEPT: *

A: here compare given options with characteristics of ANOVA

Q: What information is provided by the numerical value of the Pearson correlation?

A: Pearson's numerical value, or magnitude of correlation, informs the strength of the relationship…

Q: What does it mean to say "correlation" does not imply causation?

A: Correlation between two variables means they are linearly related to each other Causation means…

Q: Provide formula for a significance test of Pearson's correlation ?

A:

Q: When can correlation evidence help answer a casual question?

A: I guess, instead of casual, you meant causal.  Correlation is the measure of the degree of…

Q: Explain the concept of Range Restriction, and the issue it may pose to correlation statistics

A: The restricted range occurs when the range of the data from a variable is limited. Thus restricting…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.