Consider the following data for an independent variable X and a dependent variable Y. X 12.1 2.9 11.9 4.0 15.8 y -1.7 2.2 -5.8 -1.0 -3.4 Suppose that a simple linear regression model is used to estimate the relationship between X and Y, using y = a +

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: When is the age-standardised death rate more appropriate for comparing populations and when is crude…

A: Calculating crude death rate is more appropriate when we are considering the population of interest…

Q: What information is provided by calculations of the “t” test statistic?

A:

Q: What is the value of the standardized test​ statistic?

A:

Q: What is the test statistic for this test as applied to the data in Table 9.18? Hint: Assume that the…

A: The rank and signed ranks for the difference values is given below: ID Baseline LVM 4-year…

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: What are requirements for testing a claim about a population mean with a known?

A:

Q: What is the difference between a point estimate and an interval estimate of a population parameter?

A: A point estimate is a single value estimate of a population parameter, such as the sample mean. An…

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: Suppose that 5000 students who have taken the SAT exam once are randomly assigned to either take an…

A: From the provided information,

Q: mean score on stat finals for all Hartnell students is 78/10

A: Given that  The mean score on stat finals for all Hartnell students is 78/100   We know that…

Q: The mean score on stat finals for all Hartnell students is 78/100. Is this a parameter or a…

A: The parameter represent the population .

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: 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 Studentized Range Statistic?

A: Studentized Range Statistics was created by William Gosset, also called Student (hence the same…

Q: 6. Which of the graphical procedures for qualitative data do you prefer? Why?

A: The qualitative data is the data which cannot be expressed in the numbers. For example: gender,…

Q: A doctor in Cleveland wants to know whether the average life span for heart disease patients a…

A: In the given situation, There are 4 hospitals. hospital 1 has 35 patients, hospital 2 has 26…

Q: Twenty samples of students from the first year were taken for the study related to student emotional…

A: Given data

Q: the p-value and correlation are one of the most commonly used statistical tests for determining the…

A: The purpose of plotting scientific data is to visualize variation or show relationships between…

Q: give a comprehensive comparison and contrasting about experimental and non experimental research

A: Experimental research is the type of research that uses a scientific approach towards manipulating…

Q: List the steps involved in analyzing quantitative data and how would I define and provide examples…

A: Steps to conduct Quantitative Data Analysis: Relate measurement scales with variables Connect…

Q: What information is provided by calculations of the “F” test statistic?

A:

Q: among federally funded high schools. The response variable is MathAch where higher scores are…

A: *Answer:

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: Discusses two important characteristics of statistics used as point estimates of parameters: bias…

A:

Q: What is the best measure of central tendency for 2 nominal level variables and why?

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

Q: Distinguished Between primary and secondary data

A: Primary data is a type of data that is collected by the researcher himself to reach at the…

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: Why is the combination of the measures of central tendency and measures of variation so informative…

A: Measures of central tendency gives the middle or central value which represents the whole data in a…

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: 35, 10, 40, 40, 20, 10, 15, 14, 18, 35 Find the five-number summary for the data.

A: Given data is appropriate for measures of central tendency and measures of dispersion . to find the…

Q: Determine the percentage of data values that lie between the upper and lower quartiles .

A: In a box-plot the left end line of box denote lower quartile, the right end line of box denote upper…

Q: What is Inferential Statistics in Quantitative research?

A: Statistics consists two parts:  1. Descriptive statistics: This part  of the include description…

Q: Are the observed frequencies variables? What about the expected frequencies? Explain your answers.

A: Chi-square Distribution: If X ~ N(0,1) then X2 is known as chi-square variate. If X ~ N(µ,σ2) then z…