Count for profit=1, nonprofit and GV=0' .00 1.00 Total Influenza/pneumococcal shots 113 272 385 1 4 11 15 Total 117 283 400

Q: can ridge regression be applied if sample size is smaller than the number of predictors?

A: It is not unusual to see the number of input variables (predictors) greatly exceed the number of…

Q: Explain Single Observation Summary of Z-test Summary?

A: Z-test: Z-test is a statistical test used to determine whether two population means are different…

Q: What does Statistical Significance implies?

A: Practical significance: The practical significance states that even if the treatment tested is…

Q: Incidence reflects the likelihood of developing a disease among a group of participants free of the…

A: Incidence refers to the proportion of number of new cases among people who are free from disease for…

Q: Does statistically different indicate substantially different? Why or why not?

A: No, statistically different does not indicate substantially different. These two are different…

Q: Describe what is meant by statistical significance.

A: Describe what is meant by statistical significance?

Q: What does the F-statistic represent in ANOVA? a. The ratio of between-group variability to…

A: The F-statistic in Analysis of Variance (ANOVA) is a key part of this statistical analysis tool.…

Q: What does the F-ratio tell us in between-subjects ANOVA results

A: ANOVA: It stands for Analysis of Variance. It is a statistical technique used to compare more than…

Q: Explain the role of critical difference in Analysis of variance..

A: Explain the role of critical difference in Analysis of variance.?

Q: What research decision influences the magnitude of risk of a Type 1 error?

A: The type I error is the error which results in rejecting the null hypothesis when it is true.

Q: What is the best statistical method to use when measuring two nominal level variables? Why?

A: Nominal scales are used, without any quantitative significance, to label variables. One might…

Q: Are post hoc tests necessary when the F-ratio is not statistically significant? Why or why not?

A: After ANOVA, we further use post hoc tests to make multiple comparisons.

Q: In the F-ratio for a repeated measures ANOVA, variability due to individual differences

A: ANOVA uses the F-test to assess whether the variation between group mean is greater than the…

Q: What is STANDARDIZED EFFECT estimates Cohen’s d?

A: Cohen’s d is an effect size which is used to indicate the difference between two sample means…

Q: Differentiate between measure of central tendency and measure of dispersion

A: Solution: Descriptive statistics helps in the analysis of dataset by summarizing and graphically…

Q: Explain the Sources of variability and F ratios in one- and two-factor ANOVAs.

A:

Q: What are the descriptive methods in assessing normality? Explain each method.

A: Normality test: This test is applied to assess normality of data sets. Normality of a data set is an…

Q: 2) Diagnostic Tests: Uric Acid- Overproduction of uric acid in the body can be an indication of cell…

A:

Q: True or False: For both AIC and BIC (two statistics we often use to compare model fit), the model…

A: Solution: AIC ( Akaike's Information Criteria ) and BIC ( Bayesian Information Criteria ) are the…

Q: When calculating effect size is it possible for a very small treatment effect to be a statistically…

A: A check for hypothesis usually decides whether the effect of treatment is greaterthan chance,…

Q: The Chi-Square analysis provides researchers with a specific estimate of the overall significance…

A: The chi square test tells if the data distribution observed across the categories is similar to the…

Q: If there is a main effect of age, is the main effect of age significant? Why?  Provide F-statistic,…

A:

Q: ees of f

A: The process of finding the difference in multiple group means and data of homogeneity is ANOVA. The…

Q: Assess the importance of fixed and random effects.

A: Fixed effects A fixed-effects model supports prediction about only the levels and categories of…

Q: how do i find quartile 1 in a set of data?

A: First quartile: The first quartile is the middle-most observation or median of the lower half of the…

Q: When calculating an ANOVA, if the research hypothesis is in fact true, then. variance due to group…

A:

Q: Formulate the mean of the sampling distribution of the difference between means ?

A:

Q: Are relative risk of 2 and 0.5 the same or different in strength of association?

A: Relative Risk It is the proportion of occurred disease or mortality among the population group which…

Q: he effect of the effect size on Type II errors.

A: Type II error is defined as the probability of accepting the null hypothesis when it is actually…

Q: Discuss the difference between statistical significance and practical significance.

A: Statistical significance:In general the statistical significance was used in hypothesis testing. It…

Q: Rural development is one of the priorities in national development. In addtion to improving the…

A: Given information: The information about the dependent and independent variables and the regression…

Q: Why is it important to include a test of effect size when reporting our statistical test results?

A: Effect size:-   effect size is a quantitative measure of the magnitude of the experimenter…

Q: Which are the steps involved in the construction of explanatory bivariate tables?

A: Explanatory Bivariate table: A Statistical technique intended to recognize and portray the…

Q: 5. Compare ANOVA and regression.

A: We have to find difference between ANOVA and Regression...

Q: Why is shoe sizes of that child are between 5 to 10 is considered as a discrete quantitative…

A: A country's population, a person shoe size. Or a car speed all are quantitative variables.

Q: Describe about Sources of variability and F ratios in one- and two-factor ANOVAs.

A:

Q: What are Sources of variability and F ratios in one- and two-factor ANOVAs?

A:

Q: How can outliers affect the results of statistical analysis?

A: We know that     An outlier is essentially a value that is much higher or much lower than all the…

Q: Statistics used to test for significance and extrapolate to a population are known as what type of…

A: Statistics is basically divided into two major fields.  Descriptive statistics Inferential…

Q: Illustrate Test the difference between a complete and reduced model for significance?

A:

Q: which of the best illustrates the distinction between statistical significance and practical…

A: Statistical significance: It consider that the observed results are unlikely under the assumption…

Q: A research study investigates the occurrence of extra heartbeats between untrained and trained older…

A: Given the data as