If the outcome of a study is statistically significant, it means that the manipulation of the dependent variable likely had no effect the dependent variable likely affected the outcome regression to the mean most likely occurred the results are unlikely to be obtained if there is no difference between the control group and the experimental group there is no correlation between variables

Q: what is a quantitative variable that would have a positive correlation with credit scores? That is,…

A: Correlation between two variables measure the strength and direction between two variables. It…

Q: Investigators wished to study whether pregnant women over the age of 42 were more likely to suffer…

A: The given data is as follows:Population mean, Sample size, Sample mean, Sample standard deviation,

Q: Newburg Park, Florida is a popular, beach resort town. Property values are fairly high there and, as…

A: n = 22, r = -0.28

Q: he average height of a large group of children is 43 inches, and the SD is 1.2 inches. The average…

A: Since the plotted scatter diagram is football-shaped and for the provided correlation coefficient…

Q: If the correlation coefficient is negative, this means the test statistic, t, can not be calculated…

A: Given that ; Here we use the correlation coefficient concept to solve this problem.

Q: A bullying prevention program is underway in the Phoenix school district.  The researchers ran…

A: Chi Square test is used because  The researchers want to determine if there is an association…

Q: evening. What would be the most appropriate procedure to use to analyze data to answer this…

A: Here the two variables are the customers' preference for using cash or credit and the customer will…

Q: Describe the potential effects of outliers on performing statistical inference regarding the utility…

A: Effects of outliers in data:

Q: Using 20 observations, the multiple regression model y = Bo + B1x1 + B2x2 + ɛ was estimated. A…

A: Hypothesis, Ho1: the predictor variable X1 is jointly significant. H11: the predictor variable X1 is…

Q: DO STYROFOAM CUPS HOLD HOT OR COLD LIQUIDS BETTER? WHAT WILL BE YOUR CONTROL GROUP ? WHAT WILL BE…

A: The researcher wants to conduct an experiment to test if Styrofoam cups hold hot or cold liquids…

Q: What does it mean to say that the linear correlation coefficient between two variables equal 1?…

A: What does it mean to say that the linear correlation coefficient between two variables equal 1? It…

Q: an experimental study, the variables in a correlational study are not manipulated by the researcher.

A: In a correlational study, the investigator observes or measures two variables to know about the…

Q: What is the coefficient of determination and how is it interpreted in correlation and regression…

A: The coefficient of determination, often denoted as R2, is a statistical measure used in correlation…

Q: The weights (in pounds) of 6 vehicles and the variability of their braking dista 6500 5100 5880 4800…

A: The objective is to test whether there is a significant linear correlation between vehicle weight…

Q: How can you verify whether the linear correlation between two variables in a scatterplot is…

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

Q: We wish to determine if there is a correlation between the birth weight (in grams) of nine newborn…

A:

Q: archer wanted to examine the effect of a new math study skills program on se y-five students took…

A: Given that  Sample size n =25 Sample mean=85 Sample variance s2 =100 Sample standard deviation s=10…

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: An electronics retailer would like to investigate the relationship between the selling price of a…

A: Given that, An electronic retailer would like to investigate the relationship between the selling…

Q: Which of these statements is best?       The variable to be predicted is the independent variable.…

A: Which of these statements is best?       The variable to be predicted is the…

Q: Using the provided output, what is the pvalue and what are the results of the test?

A: Test is that whether there is an association between caffeinated coffee intake and clinical…

Q: Explain why longitudinal studies and multiple regression analyses can help address the issues of…

A: In order to enhance the potential validity of a quality research project, both internal and…

Q: Last school year, the student body of a local university consisted of 35% freshmen, 25 % sophomores.…

A: Claim : significant change in % of students for each classification for this year as compared to…

Q: A major company would like to assess the relationship between self confidence and sales levels in…

A: In this case, we will use correlation coefficient.

Q: Both arm circumference and BMI measurements have been used as screening tools for being underweight,…

A: a) The null and alternative hypotheses are shown below: H0: There is no significant linear…

Q: 1) A researcher wants to determine whether the death rate (number of deaths per 1,000 people) could…

A: The linear regression equation is of form y=β0+β1x Follow the steps below to get the Regression…

Q: What percentage of the variance for the score on physical overall well-being is predicted by its…

A: Given,the Pearson correlation, .To estimate the percentage of the variance for the score on physical…

Q: The Core grade point is the eventual dependent variable in a regression analysis. Look at the…

A: From the given information, There is a multicollinearity between the independent variable that is…

Q: A Poisson regression was used to investigate how religious service attendance, expectations for the…

A: From the given information, a Poisson regression was used to investigate how religious service…

Q: The number of hours 10 students spent studying for a test and their scores on that test are shown in…

A:

Q: In a test of significance, you can conclude there is a statistically significant relationship when:

A: The provided information is as follows:The objective of the given question is to determine when…

Q: What’s the effect? A researcher studying violent behav-ior in elementary school children asks the…

A: There is a strong positive correlation between the time each child spends playing computer games and…

Q: Can you help me out by showing me an example of a weak positive correlation scatter plot? with a…

A: Scatter plot and example for a weak positive correlation.

Q: If a research study in biomedical field found a moderate negative and statistically significant…

A: The correlation helps in understanding the relationship between the 2 variables.

Q: Suppose a new drug is intended to improve walking distance in patients with Parkinson’s Disease. A…

A: The researcher measures patients’ walking distance in feet before and after trying the drug for 9…