There is a high correlation between ice cream sales and the number of shark attacks. Does this mean that we can lower the number of shark attacks by eating less ice cream? Explain using appropriate statistical terms.

Q: What is the difference between preventative measures and preventative statistics of a disease

A: preventive  healthcare or preventive  medicine refers to the measures taken in order to prevent and…

Q: Would an experiment design that would be analyzed with a repeated measures ANOVA be superior or…

A: It is good to use a repeated measures ANOVA when the measures are from the same persons at different…

Q: What is the probabilty distribution of a statistic is called?

A: Given that, Probability distribution of statistic

Q: What is the correlation between ‘Weight’ and ‘Performance’?

A:

Q: What does Statistical Significance implies?

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

Q: What are his hypothe ses and the test statistic ?

A: Given that Sample size n = 144 Sample mean = 147 Population SD = 100

Q: Pennsylvania Refining Company is studying the relationship betwee price of gasoline and the number…

A: Given: We have to find out answer of given question....

Q: Why would we run a two-way analysis of variance and what effects would we look at for interpretation…

A: We have to tell about TWO - WAY ANOVA (Two way analysis of variance)

Q: What statistical procedure is best for the attached scenario and how will it answer the research…

A: Instruction : "What statistical procedure is best for the attached scenario and how will it answer…

Q: What kind of test is used to solve the test statistic value for the population proportion?

A: We want to tell you what kind of statistic and test are used for population proportion.

Q: When should you use a one-way ANOVA to analyze your data? Distinguish between one–way ANOVA for…

A: ANOVA compares one or more population mean scores with each other on the basis of the sample data;…

Q: A researcher conducted a research that majority of people who died during pandemic bought a new…

A: Given: Research that majority of people who died during pandemic

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 Two Related Samples?

A:

Q: Why is it important to know what type of statistical test should be run before data is collected?

A: It is important know what statistical test should be run before data is collected to ensure data…

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: Describe the statistical pattern by which customers are generated over time must also be specified?

A: Queuing theory are used to measure the waiting, service level, service, waiting time, system etc.,…

Q: w is it used to conclude there is a statistically significant difference between the mean of…

A: The test which gives global assessment for statistical difference for 2 independent means called…

Q: Please review and explain the significance of basic concepts about random variables, namely, the…

A: In Statistics or data analysis, the various descriptive or summary statistics on a particular random…

Q: Should be consider this score unusual? What is the value of the test statistic?

A:

Q: A recent study examined the drinking behaviors of undergraduate college students (male and female…

A: Null Hypothesis is :  (That is, there is no significant difference in the drinking habits of males…

Q: When I'm trying to infer the population mean from a small sample, why do I have to rely on the…

A: The assumptions for the z-statics is appropriate as given below:The samples are randomly selected…

Q: What test would be best to use if there was a statistical difference between brands in an…

A: ANOVA : - It is statistical technique to measure the difference in mean between more than 2 groups.…

Q: What is the relationship between types of error and statistical power?

A:

Q: What does it mean when sample results are not statistically significant?

A: statistically significant: In principle, a statistically significant result (usually a difference)…

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

A:

Q: What is meant by the phrase statistically significant?

A: Simple random sampling:Simple random sampling is the process of sampling in which every individual…

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: Why do you need to understand the question before deciding the statistical tool to be used?

A: Some of the most common and convenient statistical tools to quantify such comparisons are as…

Q: What effect does increasing the sample size have on the population standard deviation? I know that…

A: The increase in the size of the sample, decreases the population standard deviation. This happens…

Q: What is the best point estimate for the population's variance if the sample variance is 41?

A: Given,sample variance(s2)=41

Q: Is there sufficient evidence or not to conclude that there is a linear correlation between brain…

A: The P-value is 0.265.

Q: What are the different statistical procedures and could you explain them?

A: Statistical procedures are scientific procedures that help us analyze data. The data can be in any…

Q: What statistical methods are typically used in an inferential study?

A: There are two major parts in Inferential statistics, i. Estimation ii. Hypothesis Testing So, these…

Q: - How do you know if a sample is significant different from the population mean? In other words,…

A: Let μ be the population mean of the sample we are taking and μ0 be the hypothesised population mean…

Q: A better explanation of ANOVA and correlation

A: Analysis of variance (ANOVA) is a technique which is used for separating the total variability in a…

Q: What is the best thing to do when the result failed to meet statistical significance but had a…

A: Statistical significance of a result: It is used in the testing of hypotheses. To determine whether…

Q: Give one method to increase statistical power and Which test statistic should you use if you are…

A: Given problem Given that   Method to increase the statistical power : a) Increase the sample size…

Q: 2) Test for a linear correlation between Midterm and Overall Grade.

A: The objective is to test for a linear correlation between Midterm and Overall Grade.

Q: 1. Does correlation imply causation?

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

Q: What does statistically significance indicates?

A: Statistical significance: If the chance of occurrence of an event is less than or equal to 5% then…

Q: What advantages and/or additional information does LINEST offer compared to other statistical…

A: The LINEST function is used to calculate the statistics for a line using least square method.…

Q: When does Two Related Samples occur?

A: Definition: Related sample: Paird data is known as releated sample or coupling data also called…

Q: In ANOVA, main effect always refers to?

A: Let a treatment A be classified into k levels then, to test the equality of k levels means, we will…

Q: Even if a treatment has no effect, it is still possible to obtain an extreme sample mean that is…

A: According to the provided information, if a treatment has no effect, the extreme sample mean that is…

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.