A random sample of 15 students was selected and their ACT score recorded. 22 33 29 15 20 30 22 19 27 25 27 26 20 32 24 28

Q: What is the third quartile

A: We are asked to find the third quartile

Q: What statistical analysis correctly analyzes the independent measure ( also known as in between…

A: Here we can say that for independent measures we use t-test for one sample and t-test for two…

Q: when is the significance level determined

A: The significance level defines that the probability of rejecting the null hypothesis when it is…

Q: Find the quartiles of the following set of numbers: 0.5, 1, 3.5, 7.2,-5, 8.3, 4. (a) Q₁ = (b) Q₂:…

A: here we have to find out the quartiles of the following set of numbers:here we have to find out the…

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 is an “average” z-score? Explain your answer?

A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: The test statistic is wrong

A: We have given that  s12  = 1315,  n1= 15 s22  = 1523,  n1= 19

Q: which of the following statistcs anxiety is best and why ? worth of statistics, interpretation…

A: Note: Hey there! Thank you for the question. As the question is not given in a particular context,…

Q: Compute the first and third quartile?

A: Here, we have to find the first quartiles and third quartiles.First quartile is that value below…

Q: What is a T-Test? How is it applied to a Single Population Data Set?

A: Student's t-test was given and first used by W.S. Gosset in 1908. The statistician W.S. Gosset is…

Q: Outline the differences between paired and unpaired t-test with examples.

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

Q: what is an example of test measure for validity?

A: Mathematically, the validity coefficient measures the validity of a test which is related to…

Q: wrong answer for letter c, it was asking the LOWER quartile.

A: Percent of calories consume by Americans follow normal distribution with mean 36  and standard…

Q: What are the differences between histograms and Pareto diagram? Elaborate

A: Introduction :-  Here we have to explain what is the difference between histogram and Pareto…

Q: Two students recorded their scores on weekly  MMW performance task that were 20 items. Student A:…

A: Here the give information is Two students recorded their scores on weekly MMW performance task that…

Q: The p-value is correct, but the z-score is incorrect

A: It is given that a sample of 200 homes sold in which 113 homes with sales prices over median and 87…

Q: Use the following visualization to answer questions 5 - 6. We are going to focus on 3 explanatory…

A: The explanatory variables and their possible values for predicting the response variable, which is…

Q: How do i find the test statistic and the p-value?

A: The sample sizes are 22 and 22.

Q: How would you explain conducting a scatter graph to someone who has never heard of correlation (but…

A: Scatter graph is a graph that is drawn to visualize the relationship between two variables ,x and y,…

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

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

Q: What is the power of the test in the statistical test?

A: Statistical Test: A statistical test is a tool that helps people make analytic conclusions about a…

Q: How to draw a boxplot with the same quartile 2 and quartile 3?

A: Boxplot is a graphical representation that indicates the five-number summary of data. The…

Q: α is the observed level of significance whereas the p-value is the preset level of significance.…

A: We have given that, α is the observed level of significance whereas the P- value is the preset level…

Q: List the types of Sensitivity Analysis?

A: Sensitivity Analysis deals with finding out the amount by which we can change the input data for the…

Q: Do you know how to construct quartiles?

A: Quartiles: It is a method of dividing the data into four parts, 0% to 25% of 25% of data is the…

Q: The data represent the number of days off per year for a sample of individuals selected from ten…

A: Data given  20,26,40,36,23,42,35,24,30,33

Q: if we are not doing inferential statistics, what is most frequently the best measure of central…

A: Inferential statistics involves making inferences about a pop. by examining random samples.

Q: If the test statistic falls within the rejection region, you reject H0 in favour of Ha true false

A: In this case, we need to identify the given statement is true or not.

Q: What are 6 real world applications of the two sample t test (equal variance)?

A: Two-Sample T-Test(equal variance) It is a hypothesis testing of the means of the two samples. It is…

Q: Can you explain how you find the p-value of the test statistic

A: The test statistic is -2.25 and the degrees of freedom is 80.

Q: What is the significance of a z-score?

A: The value of z score tells that how many standard deviations the data is spread away from mean. The…

Q: What happens to the width of a confidence interval as the significance level, a, decreases?

A: There is two things Significance level: which is the prefixed probability of type I error before any…

Q: Explain how F-statistic has two types of degrees of freedom?

A: Introduction: Degrees of freedom can be defined as the number of values in an analysis, that can be…

Q: what is the distribution of sample means exactly? Why are sample characteristics important in…

A: As per central limit theorem- The distribution of sample means, also known as the sampling…

Q: What are the Four Steps to use when working with the t-test ?

A: The Four Steps to use when working with the t-test with p-value approach is given below: Step 1:…

Q: How do the Type I and Type II error rates of one-tailed and two-tailed tests differ?

A: Type I error: A type I error occurs when one rejects the null hypothesis when it is true. The…

Q: What are some of the most basic statistic formulas used in excel for the Hospitality carrier field?

A: Some of the basic formulas are given as mean, median, mode, quartiles etc

Q: What is the difference between the predictor variable and the criterion variable?

A: In theory of statistics, dependent variable is the criterion or response variable.