Suppose that you want to do statistical significance tests for four correlations and you want your to be .05. What would you use if you apply the Bonferroni procedure?

Q: ssume we have met the assumptions of using Pearson's correlation. If we wanted to test whether…

A: Given Information: No. of variables=02Given variables=1. Postnatal depression scores2. antenatal…

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

A:

Q: A correlation study provides the following data: r = .66 and the study involved 92 participants What…

A: The number of participants involved are 92.

Q: If an observed correlation value is -.45 and the table value for Pearson Correlation is 450 for a…

A: Here, the observed correlation value is -0.45. The table value for Pearson correlation is 0.45.…

Q: A researcher wanted to determine if there was a relationship between GPA in high school and first…

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

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: The table below shows the summary statistics of two variables for correlation analysis. Weight at…

A: d. SPSS extracted 510 cases which did not violate any assumptions for correlation analysis.…

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: There was a sad news story about a woman pushing an elderly man off a bus because she was irritated…

A: Causations means one variable causes another to change, means one variable is dependent on other.…

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

A: Correlation :  Correlation describes the relationship between two quantitative variables .…

Q: What is the coefficient of determination and why would you wa

A: The coefficient of determination is the measurement of the goodness of fit i.e. the percentage of…

Q: If a treatment is expected to decrease scores on a variable for which the mean is expected to be…

A: Given: μ=50 If a treatment is expected to decrease scores on a variable, then the appropriate…

Q: Which of the following would decrease the value of the test statistic when dependent samples or…

A: Note: Since the options are not provided we have given the general answer. Please provide answer…

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

A: cautious when interpreting a correlation

Q: The owners of the Armadillo Lumber Company wanted to find out whether pay raises are correlated with…

A: Assume the variables, Pay raise as x and Absences as y.

Q: A researcher investigated whether there was a relationship between the time spent being read to as a…

A: Aim is to checking whether there is a relationship between the time spent being read to as child and…

Q: If two distinct values of the variate are given when is the covariance or coefficient of correlation…

A:

Q: Suppose that you have bivariate data for an entire population. a. How would you decide whether an…

A:

Q: How do you calculate the p-value given the correlation coefficiet (R) and the sample (n)?

A: We have to calculate p value if correlation coefficient (R) and sample size (n) is given  We can…

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 is the variance of the following data( 1, 2, 3, 4, and 5)?

A: According to the given information in this question We need to calculate the value of variance

Q: Researchers conducted a study to determine the influence of having a full-time job on academic…

A: R2 is known as coefficient of Determination and is used to represent the amount of variance in the…

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

A: From the given question, Correlation coefficient:

Q: After running a Pearson correlation, the researcher obtained the following results r(98) = .32, p =…

A: r(98) = .32, p = .02.

Q: Would you expect the correlation between High School GPA and College GPA to be higher when taken…

A:

Q: State the mad scientist’s null and alternative hypotheses   2 Find the critical r 3 Compute the…

A: 1 State the mad scientist’s null and alternative hypotheses 2 Find the critical r

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: Why should researchers taught to be cautious when interpreting a correlation?

A: Correlation is a measure in statistics that is used to measure the strength of linear relationship…

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: er, which type of statistical test is most appropriate?

A: There are various statistical test that can help in exploring the relationship between two…

Q: Which correlation BEST implies causation?

A: Given that :Causation examples.

Q: Determine whether a significant degree of rank correlation exists, using desired significance level.…

A: The hypothesis is, Null hypothesis: H0: There is no significant degrees of rank correlation exists.…

Q: s there a significant relationship between subject’s IQ and pre-test scores?α =.05, two tailed, if…

A: We perform a hypothesis test of the “significance of the correlation coefficient” to decide whether…

Q: Which of the following is the value of the appropriate test statistic?

A: We will use paired t test to test that whether the training was effective. Let d be the difference…

Q: Assume the population variances are equal. A teacher wants to determine whether  the mean scores for…

A:

Q: 1. Which data set indicates the strongest positive linear Choose one relationship between its two…

A: Q1)Figure 1 has the perfect positive correlation as all the points are on the straight line.     Q2)…

Q: If the correlation coefficient value for the two variables is 0.865 with sample size 15 each. What…

A:

Q: If the correlation is .8, then 40% of the variance is explained?

A: The given statement is incorrect.

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: 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: A researcher wanted to test whether there is a relationship between preferred sweet (Oreo cookies,…

A: In testing of hypothesis, we see different types of tests such as z test, chi-square test, t-test,…

Q: When calculating a correlation coefficient, why is it important to divide the sum of cross-products…

A: You divide the sum of cross-products of the Z scores by the number of people in the study, because…

Q: When analyzing an association between two variables, the size of the correlation may be deceptive…

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

Q: If the correlation coefficient is 0.8, the percentage of variation in the response variable…

A: Given: correlation coefficient =0.8

Q: We want to test if there is a difference in the amount the families in the two cities spend on…

A:

Q: When compared with the Pearson correlation, the Spearman correlation coefficient is: Less…

A: Given information: The comparison of Pearson correlation coefficient and spearm.an correlation…

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: When conducting multiple correlation analyses, in order to reduce the risk of type 1 error, you…

A: When a single false positive in a series of tests is an issue, the Bonferroni correction is…