What is the value of test statistic

Q: How do you interpret sample standard deviation and sample mean.

A: Interpret sample standard deviation - Low standard deviation means data are clustered around the…

Q: what statistic should be used? What is the value of that calculated statistic?    Please explain!

A: The variable should be measured is increase in knowledge after the students participated in an…

Q: What are some common measures of central tendency used in descriptive statistics and how are they…

A: The measures of central tendency used in descriptive statistics are:

Q: How do you find the Ouartiles and the IQR?

A: Quartiles are values that divide the entire set of data into quarters. The different types of…

Q: What does sample variance measures in F test?

A: F-test is used to test whether the observations in two groups have same variability. Let X1, X2, …,…

Q: Hello, I need help with sign tests and how to find the test statistic and p-value.

A: A nonparametric test is a hypothesis test that does not require any specific conditions concerning…

Q: What are the reasons why you should learn statistics? Do you think that learning statistics will…

A: There are few reasons you should learn statistics - 1. The first reason would be you effectively…

Q: Why is the response rate an important consideration in survey? And give some examples to…

A: If response rate is low, results may notdemonstrate the population as well as if response rate was…

Q: What are the statistical tools use in descriptive and inferential statistics?

A: Descriptive statistics allow you to characterize your data based on its properties. There are four…

Q: Explain Multiple Observation Summary of Z-test?

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

Q: When do you use the t-statistic and what is the advantage over the z-statistic?

A: Conditions for using t statistic: The t statistic is used in the hypothesis testing, for testing the…

Q: What type of statistic test would I perform for this questions, Is there a relationship between…

A: Chi-square test:   A single simple random sampling is done with each individual being classified…

Q: How we use the statistical inference

A: Statistical inference is the process of drawing conclusions or making predictions about a population…

Q: What is the value of z score ? Mean  =142 Standard devaition=2 X =140

A:

Q: What is the important concept in inferential statistics? Explain it.

A: Descriptive and inferential statistics: Descriptive statistics concerned with describing the target…

Q: Why is it important to make sure that the measures you use in your research projects are valid an…

A: The objective of this question is to understand the importance of validity and reliability in…

Q: Method of data collection from primary and secondary data in statistics?

A: Primary data : Primary data means original data that has been collected specially for the purpose in…

Q: How to summarise data(scores)with decriptive statistical techniques

A: Descriptive statistics are brief descriptive coefficients that summarize a given data set, which can…

Q: what is the test statistic for Tool B? What is the p value?

A:

Q: Differenciate between statistics and probablity?

A: Probability and statistics are related areas of mathematics which concern themselves with analyzing…

Q: Test Statistic p-value= =

A: The sample size for first population is 34, sample mean is 4.9 and sample standard deviation is 1.7.…

Q: hat is anecdotal evidence? Why is it unreliable? What does it mean when we say the data is…

A: anecdotal evidence

Q: 20152010 Number of people asked 250 400 Number of people who prefer real estate 130 180 The analyst…

A: For 2015 : We have that the sample size is N1=250N1 = 250 , the number of people who prefer real…

Q: Explain Sampling Distribution of a Sample Mean and how does it affect the parameters and random…

A: We have to ask about sampling distribution of a sample mean : And how it affects the parameters.

Q: Determine the test statistic

A: Solution-: Given: μ0=60,n=15,s=,α=0.01 Given data:  80 88 48 75 52 32 66 74 73 54 72 78 104 95…

Q: What is the value of z score ? Mean  =142 Standard devaition=2 X =146

A:

Q: What is an appropriate statistic to use for whether race/ethnicity (white, person of color) affects…

A: Test is that whether race/ethnicity affects whether or not people feel safe in their neighborhood.

Q: What is meant by a statistical hypothesis, and what are the steps for testing a statistical…

A: The statistical hypothesis is meant to be a type of analysis in which researcher use the assumption…

Q: What is Measures of Central Tendency? The most common measures of central tendency?

A: What is Measures of Central Tendency? The most common measures of central tendency? A measure of…

Q: How does the normal curve allow behavioral scientists to compare different types of scales, tests…

A: First understand normal curve : For normal curve,  the curve is bell-shaped and symmetrical. Zero…

Q: What is test statistics and p value

A: Introduction: Denote μ as the true mean change in LDL cholesterol level among individuals treated…

Q: Explain what are the objectives of ANOVA and how it is formulated. What are the underlying…

A: Introduction: The ANOVA or analysis of variance is a parametric method of hypothesis testing,…

Q: What is normalcy of data how we can examine it, discus the reliability of the construct.

A: Normal data are data that are drawn (come from) a population that has a normal distribution. This…

Q: How to provide statistical interpretation of the coefficient, standard error, t-stat and p value of…

A: Regression Coefficient:The regression coefficient ​corresponding to a given explanatory variable can…

Q: What is ANOVA and how is it used in statistics?

A: ANOVA is a useful statistical tool in many fields, including psychology, biology, economics, and…

Q: Define the term given test statistic

A:

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…