How can we know how far or major the skewness and outlier number to be considered approximately normal or not?

Q: In a study, researchers wanted to measure the effect of alcohol on the hippocampal region, the…

A: The hypothesis expresses a viewpoint on a population parameter.A null hypothesis is a statistical…

Q: Discuss FIVE (5) issues in data management. (c) Differentiate between the outliers, extreme values…

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Q: How does an outlier affect the mean absolute devlation?

A: Mean absolute deviation is calculated using the formula: MAD = ∑xi - x¯n xi = Input data values x¯ =…

Q: Because most data values are on the left, we would say that this dot plot (burglary rates per…

A: According to the provided information, most data values are on the left. As data is extending…

Q: State the hypotheses. H₂: All the means are equal. H₂: At least one mean is different from the…

A: The quality control department measures weekly values of different suppliers for the percentage…

Q: Describe how outliers can impact the relationship between two variables?

A: We have to describe how outliers can impact the relationship between two variables?

Q: How do you know Which measure of tendency is nominal ordinal or interval?

A: The measures of tendency are mean, median and mode. Mean is the average value of a data set. Median…

Q: Why is it important to identify and understand outliers?

A: Solution-: We want to find why is it important to identify and understand outliers?

Q: Explain how the interquartile range of a data set can be used to identify outliers. The…

A: Solution

Q: What are the outliers in these data? Show your work. (calculations)

A: From the dotplot, the data of 22 students is 1, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8,…

Q: Please write a sentence of comment about the shape of the distribution.

A: Kolmogorov Statistic p-value < 0.01 Cramer Mon Vises p-value < 0.01 Anderson Darling p-value…

Q: Levi-Strauss Co manufactures clothing. The quality control department measures weekly values of…

A: Given the data of weekly values of different suppliers for the percentage difference of waste…

Q: Explain why the mean is more sensitive to outliers/extreme scores compared to the mode and median.

A: We have to check the sensitivity of measures mean, median and mode.

Q: For a box plot, here are 4 values at the low end of a dataset and 4 values near the high end of a…

A: Given: Data 2.7 5.5 6 9 … 50.5 54 60 65 Value 5 & 47

Q: what can we say about outliers if the mean and 5% trimmed mean are equal?

A: Mean is the average of all data points. Trimmed mean is similar to a regular mean, but it trims any…

Q: Describe a variable that would likely result in a positively skewed distribution. Justify your…

A: Histogram is used to show the skewness exist in the data set. There are two type of skewness they…

Q: Decide whether each of the following statements makes sense (or is clearly true) or does not make…

A: the solution is all about the concept of mean and median.

Q: For each of the 33 male students in a college class, their height (in inches) and foot length (in…

A: Given that 33 male students in a college class their height (in inches) and foot length (in…

Q: Explain what is an outlier and how it may affect the data results of an investigation

A: We have to explain an outlier and write how it may affect the data results of an investigation.

Q: How will you know by using the mean and median to determine if a distribution is normally…

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Q: How can we check to see how much the presence of an outlier (or perhaps a few outliers) affect the…

A: Most used statistics are Mean, Median and Mode. Let us now discuss the effect of outliers on…

Q: set

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Q: The boxplot summarizes the reading rates, in words per minute (wpm), for 160 elementary school…

A: (A) The data set contains two outliers.- Truethe two outliers are 30 and 34. (B) The range is…

Q: There is one low outlier in the plot. The price of beer (per ounce) and price of a hot dog for this…

A: If the observation is far from the remaining observations, then the observation is said to be an…

Q: Use the graphs you have created to find outliers (values that are very far from the other data…

A: From the above graph, a fraction of the values that belong to the bin 0-1000 and 5000-6000 can be…

Q: Explain how the interquartile range of a data set can be used to identify outliers. The…

A: Explain how to find outliers from Inter Quartile Range. IQR = Q3-Q1

Q: Sample mean is more sensitive to outliers in the data compared with the median True False

A: In question, We'll check that given statement is true or false. The explanation is below,

Q: 4) Give a real-life example of a time when it would be better to use the median instead of the mean.…

A: Solution-: Give a real life example of a time when it would be better to use the median instead of…

Q: Describe briefly the multinomial distribution.

A: Solution-: Describe briefly the multinomial distribution.

Q: Which, if any, of the observations are outliers? Justify your answer please!

A: As the box plot has been created.

Q: Find the 5 number summary for the data shown 10 17 40 41 46 52 53 59 65 98 5 number summary: IQR: D

A: Introduction: The middle value in a sorted list of numbers is called the median, and it may be used…

Q: 26. How can you describe the spread of data using a box-and-whisker plot?

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Q: The pie chart shows the distribution of the opinions of parents on whether a college education is…

A: CategoryObserved(O)ProportionExpected(E)(O-E)²/EStrongly agree850.54106.384.296901673Somewhat…

Q: In a study, researchers wanted to measure the effect of alcohol on the hippocampal region, the…

A: Given,   Sample size = 12 Sample mean = 8.17 Sample standard deviation = 0.8 Population mean = 9.02…

Q: Which measure of center is most resistant to (or least affected by) outliers? Explain your answer

A: Given : Outliers : An outlier is an observation that lies an abnormal distance from other values or…