Behavioral or personality raters are deemed "reliable" if their ratings compare well with established norms or expert ratings, usually with a correlation of Multiple Choice less than 0.15 greater than 0.20 0.80 or higher 0.60 or lower < Prev 18 of 20 ⠀⠀ Next >

Q: What does it mean for a correlation coefficient to have a p < .02 significance level?

A: Correlation coefficient: The correlation coefficient measures the direction and strength of a linear…

Q: State the null and alternative hypotheses for determining whether there is a significant linear…

A: From the given information we show the null and alternative hypothesis

Q: If observations are paired, the appropriate t test depends on the intent of the investigator explain…

A: Introduction Hypothesis is an assumption that is being tested.

Q: Under what conditions are the median and mode a better measure of central tendency than the mean?…

A: Three measures of central tendency Mean, median and mode. Mean= average of data Median = middle…

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: A researcher finds a significant correlation between the amount of time spent watching television…

A: No, Given statement is FALSE

Q: The I- RiSC test is supposed to measure how willing someone is to take risks. Assuming that a…

A: The I- RiSC test measures how willing someone is to take risks.

Q: Would a sophomore year statistics class students’ average age be a good Point Estimator(This is a…

A: Yes, as usually students in sophomore year are of certain age and the age range is not so huge,…

Q: Is there a relationship between scores on the combat exposure scale and Davidson trauma scale in a…

A: One should first know the definitions of these scales before proceeding with the answer. Combat…

Q: What is the lowest measure of central tendency and is used primarily for nominal data to identify…

A: We know there are mainly three measures of central tendency:Mean, mode and medianWe first know where…

Q: Two doctors asked 6 of their patients, who were smokers, how many years they had smoked. In…

A: Correlation coefficient: Correlation coefficient measures the strength and direction of linear…

Q: If remedial measure is applied to address the problem of multicollinearity in the model, do you…

A: Multicollinearity (MColl) exists when independent variables (IVs) are dependent on each other.

Q: nd the mean and the median of the contents. he third value was incorrectly measured and is actually…

A: Given See the handwritten solution

Q: time reports that the time married men with children spend on child care averages 6.4 hours per…

A: (1) State the hypotheses. That is, there is no evidence to conclude that the population mean number…

Q: Why does the observed mean difference should not be taken seriously?

A: Mean difference(MD): Mean Difference is also known as Difference in means. Mean difference measures…

Q: A researcher says that 50% of the variance in blood pressure can be predicted from HR and that blood…

A: Coefficient of determination: The proportion of the variance in the dependent variable which is…

Q: A research article stated that there was a mean difference in depressive symptoms between male and…

A: From the provided information, The claim is that there was a mean difference in depressive symptoms…

Q: What design should be used (experimental or correlation) when creating a case study based on…

A: Given information: It is required to state the characteristics of cohort study.

Q: Research results suggest that IQ scores for boys are more variable than IQ scores for girls (Arden &…

A: Given the data   Low Average High Total Boys 18 42 20 80 Girls 12 54 14 80 Total 30 96 34…

Q: During a quality assurance check, the actual contents (in grams) of six containers of protein powder…

A: Given: n = 6 Formula Used: Mean = ∑Xin Median = 2(n+1)4thterm

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: measure of variability?

A: We know that  Mean and Median is used to measure of Central tendency of the given sample data .…

Q: A health psychologist knew that corporate executives in general have an average score of 2.55 with a…

A: Given information: μ=2.55, σ=0.50, n=30x¯=2.76

Q: A sample survey by Comcast asked a random sample of customers about use of the Internet and about…

A: The test is to check whether there is a relationship between Internet use and community type or not.…

Q: A researcher says that 50% of the variance in blood pressure can be predicted from HR and that blood…

A: In this question we have the value of coefficient of determination which is equal to 0.50 and we…

Q: 4. Is there a difference in overall happiness for cat owners versus dog owners. This was a question…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Which of these gives the best measure of central tendency for the given data

A: We know that, there are following measures of Central tendency are: Mean or Arithmetic Mean…

Q: tainers of protein powder were recorded as 1524, 1526, 1499, 1 32, and 1514. Find the mean and the…

A:

Q: Define Test a correlation for significance?

A: Test for correlation: The test for correlation is used to compare the sample correlation coefficient…

Q: What would you conclude if 17 pairs of data produce a linear correlation coefficient of r = 0.456 if…

A:

Q: Which of the following statements is a statistical inference? O Ingestion of butternut squash…

A: In statistical inference we aim at learning characteristics of the population from a sample data set…

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: What is the p value for the correlation between for overall instructor quality and overall course…

A:

Q: During a quality assurance check, the actual contents (in grams) of six containers of protein powder…

A: 1524, 1526, 1499, 1512, 1532, and 1514.Arranged in ascending order 1499, 1512, 1514, 1524, 1526,…