What does it mean when sample results are statistically significant? The sample results would be somewhat expected if the null hypothesis were true. OThe null hypothesis is wrong. The sample results would be unexpected if the null hypothesis were true. The null hypothesis is true.

Q: What does Statistical Significance implies?

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

Q: d) Why is a smaller MSE (Mean Square Error) better? e) What is the relationship between error in…

A: d..Why is a smaller MSE (Mean Square Error) better  e..What is the relationship between error in…

Q: Define random sample. Explain why this is important in design of experiments.

A: A random sample is a sample that is obtained by selecting the sample points randomly without any…

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: Subject : probablity and statistics Question : State the procedure for testing difference between…

A: Given, Level of significance α=0.05 The procedure for conducting the test for difference between two…

Q: What happens to the power of a hypothesis test if the sample size is increased without changing the…

A: For a fixed significance level, increasing the sample size increase the power of a hypothesis test.…

Q: Explain Prerequisites of Sampling Distribution of the Mean?

A: The sampling distribution of the sample mean, X̄, based on a sample of size n, taken from a…

Q: 8 Performing a statistical analysis on managers and employees, and we need to determine whether the…

A: For a statistical test, it is needed to set a significance level. The default significance level is…

Q: What is the difference between a simple random sample and systemic sample?

A: In a systematic sample, the only samples possible are those including every kth item from the random…

Q: what is a composite outcome rate in statistics?

A: Solution Composite outcomes, in which multiple end points are combined, are frequently used as…

Q: A shareholders group is lodging a protest against your company. The shareholders group claimed that…

A: Test - stats (t) = x¯-μsn

Q: What does “statistical significance” mean?

A: "Statistical significance" is a term used in statistics to indicate whether an observed effect or…

Q: Explain the situations of independent samples t-test vs. paired-sample t-test?

A: Independent samples t-test vs. paired-sample t-test.

Q: If we get a big difference between our sample mean and our population mean, will our test statistic…

A: Given information: The statement is given related to the big difference between x¯ and µ. Formula:…

Q: Explain Misconceptions about significance testing?

A: Misconceptions about significance testing is, The probability value is defined as the probability…

Q: If you want to reject the null hypothesis, which should be larger, the within groups or between…

A: We have given that a statement related to null hypothesis in case of F test.

Q: What is the relationship between industrial production and the application of statistical…

A: Industrial production is a measure of output of the industrial sector of the economy. The industrial…

Q: Effect of sample size on the sampling distribution. You are planning a study and are considering…

A: The sample size and sampling distribution are two integrally associated concepts in statistics.

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: An elementary school teacher is interested in knowing if there is a significant difference in the…

A: We want to find the test statistic

Q: What is the sampling distribution of a statistic? Why is it important?

A: Sampling distribution of a statistic:The group of all reliable observation of a statistic for the…

Q: rofessor Jennings claims that only 35% of the students at Flora College work while attending school.…

A: We are testing single proportion in this problem. (a) Level of significance: 0.05 Null and…

Q: use a sample to draw an inference about a population

A: The population is a set of all the possible observations about a specified characteristic of…

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: You are interested in evaluating how well students perform on an attention test. There are two…

A: In this case, the two conditions "low noise and high noise" are dependent on each other. Both…

Q: Explain the Sources of variability for one-factor and repeated-measures ANOVA.

A:

Q: What is the difference between an experiment versus a correlational study in terms of (a) the…

A: Experimental studies are conducted to determine the cause-and-effect relationship, whereas the…

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

A:

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: What happens to the power of a hypothesis test if the significance level is decreased without…

A: Solution: It is required to mention what happens to the power of a hypothesis test if the…

Q: t will you use for the sample research relationship between academic stressors and learning…

A: The chi-square test of independence is known as the method that is used to define whether there is a…

Q: How do you calculate a sample statistic and p-value (Not sure if this helps, but we are told to use…

A: We have to write formula for sample statistics and p value for hypothesis testing.

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: How does sample variance influence the estimated standard error and measures of effect size such as…

A: Standard error is always a multiple of sample variance where the multiple is a function of sample…

Q: Does having a non-significant P-value means that the means of the sample will be the same? explain

A: The hypotheses for the means is constructed as: H0: The means of the sample will be the same. H1:…