Suppose that you want to compare the means of several populations, using independent samples. If given the choice between using the one-way ANOVA test and the Kruskal–Wallis test, which would you choose if outliers occur in the sample data? Explain your answer.

Q: _________are computed to show cause and effect relationships and to test hypotheses and scientific…

A: Causation indicates the relationship between two events where one event causes another event to…

Q: Imagine a study comparing two groups:  undergrad vs. graduate students in terms of stress level.  To…

A: Provided that here is a study comparing two independent groups :  undergrad vs. graduate students in…

Q: Suppose 4 percent of the children in the US are thought to be near the juvenile diabetes threshold.…

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Q: both companies used the same sample size, what does this imply about the margin of error for each…

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Q: Having outliers in our data may affect the IQR but the sample range is unchanged O True O False

A: The IQR and sample range are defined as IQR = Q3 - Q1 Sample range = Maximum - Minimum Note : Since…

Q: If the level α remains the same, and the sample size increases, then the power will __________.…

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Q: Explain the basic idea for performing a hypothesis test, based on independent samples, to compare…

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Q: Two sets of sample data, A and B, are given. Without doing any calculations, indicate in which set…

A: INTRODUCTION :  BOX PLOT TECHNIQUE   In the Box plot technique, the Five number summary is used…

Q: The sample statistic that is unbiased estimator is:

A: Note:Hey there! Thank you for the question. However, you have not posted a complete question.…

Q: Are the univariate sample data normally distributed? Explain why for each.

A: Yes, unvariate sample data is normally distributed.  Static Facial Emotion Perception Accuracy is…

Q: Does the one observed sample mean qualify as a common or a rare outcome? Explain.

A: Sample mean qualify as a common outcome if the difference between the sample mean and the actual or…

Q: Discuss the basic strategy for comparing the means of two populations based on independent simple…

A: Simple random sample:It is a subset of the population, in which each element in the population…

Q: When resampling data from two independent samples, what is the fundamental difference between…

A: Bootstrapping is basically a method of resampling a single dataset to generate a large number of…

Q: What is Two Related Samples?

A:

Q: Since the sample size is always smaller than the size of the population, the sample mean O A. can be…

A: Correct answer is (A)

Q: Explain one possible advantage of using a paired sample instead of independent samples.

A: Paired samples, are also known as dependent samples, can be defined as the samples in which natural…

Q: 4. If the sample size is 30 and the mean score for group one is 5.6, mean score for group two is…

A: Obtain the value of SS between of this study. The value of SS between the study is obtained below…

Q: Suppose that you want to compare the means of three populations by using the Tukey…

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Q: how importan

A: The five steps to sampling are: Identify the population. Specify a sampling frame. Specify a…

Q: Provide an example (different from the ones considered in this section) of a procedure based on a…

A: A researcher wants to test the effectiveness of the training program conducted for students to…

Q: If we would like to decrease the margin of error without changing the sample size, what must happen?

A: We have to find what to do to decrease margin of error.

Q: an independent-samples t test, you will usuall

A: the test statistic for independent-samples t test = μ1-μ2-0combined standard deviation

Q: What is the sample size of adults participated in this study?

A: We have to find the sample size for the given situation.

Q: should their sample size be?

A: here use solvin's formula

Q: Descriptive statistics would address the problem by making generalizations or inferences about a…

A: Descriptive statistics:  Which provides the summary of data under study and it's explained already…

Q: The process of random sampling guarantees that the sample selected will be representative of the…

A: Given: provided a statement

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: If the sample size is increased, the margin of error will decrease.   True or False

A: Given statement : " If the sample size is increased, the margin of error will decrease "

Q: What is the difference between a sample and a census? Why can it be advantageous to select a sample…

A: A census is a study of every unit, everyone or everything, in a population. It is known as a…

Q: Why do you need to know the sampling distribution of the difference between two sample means in…

A: In this case, we need to find the reason for identifying the sampling distribution of the difference…

Q: If the sample size is 30 and the mean score for group one is 5.6, mean score for group two is 7.8,…

A: According to the question,

Q: If the variability between the different sample means taken from the same population is small, we…

A: If the variability between the different sample means taken from the same population is small, we…

Q: When is it appropriate to use a pooled sample test?

A: It is to determine when there is to use pooled sample test. There are some situation in testing we…

Q: Measures of central tendency alone are insufficient to completely describe a sample because:

A: Hint: Central value for two samples can be same.

Q: When testing for the difference between the means of two dependent samples, the sample sizes are…

A: We have to find given statement is true or false.

Q: Discuss the basic strategy for comparing the means of two populations based on a simple random…

A: Explain the basic strategy for comparing the means of the two populations based on a simple random…

Q: To be tested, why does a hypothesis must specify a single number about which the hypothesized…

A: There are two types of hypotheses: one is the null hypothesis and the other is the alternative…

Q: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

A: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

Q: The within subjects ANOVA may be used with

A: A one-way repeated measures ANOVA is used to determine whether three or more group means are…

Q: If the null hypothesis is true, then what does the distribution of sample means?

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…

Q: If we could not measure the population mean, we could use the sample mean as a point estimator of…

A: Given:  we could not measure the population mean, we could use the sample mean as a point estimator…

Q: Suppose that you want to compare the means of several treatments in a randomized block ANOVA. If…

A: Solution: Friedman test: As known to apply the Friedman test first we rank the observations within…

Q: Discuss the basic strategy for performing a hypothesis test to compare the means of two populations,…

A: In two sample t test, there are two independent large samples taken from two different populations.

Q: Suppose in a two-way ANOVA table,the total sample size N is 30, factor Ahas 3 levels, and the…

A: From the provided information, Total sample size (N) = 30 Levels of Factor A (r) = 3 The degree of…

Q: One advantage of a within subjects ANOVA is that the participants serve as their own comparisons…

A: Here we want to know given statement is correct or not.

Q: The area of inferential statistics called hypothesis testing is a decision-making process for…

A: Introduction: Inferential statistics is the branch of statistics, that is involved in making…