Check for outliers

Q: Explain what happens when finding the margin of error if all stays the same except the sample size…

A: Solution: The margin of error can be calculated by using the formula:

Q: find 40 th percentile   10,15,18,16,19,20,24,15,26,20,22,25,28,17

A:

Q: can you find the mean of 60 people in this table

A: Know that  Mean = sum of all observations/total number of observations  Sample size n=60

Q: Karen wants to estimate the mean number of siblings for each student in her school. She records the…

A: The sample is the sub-part of the population. Karen wants to estimate the mean number of siblings…

Q: (a) The smallest value in the data set is 37. Should the analyst consider the value 37 to be an…

A: a) An outlier is a value that is much larger or smaller than the other values in a data set, or a…

Q: Give an example of a situation in statistics that demonstrates the need for sampling.

A: Hi! Thank you for the question as per the honor code, we’ll answer the first question since the…

Q: Check this data set for outliers: 2,8,20,90,1

A: Draw box plot for the given data set by using Excel.

Q: Choose the scatter point in which the outlier is highlighted.

A: Outlier : It is an observation that lies at an abnormal distance from other values in a random…

Q: Is an extreme observation necessarily an outlier? Explain your answer.

A: to find:  justify whether extreme observation an outlier or not.

Q: . Give the Five-Number Summary and test for Outliers: 1, 5, 8, 10, 11, 12, 13, 18, 19, 20, 28, 38,…

A:

Q: Twelve students were asked to measure their pulses for 30 seconds and multiply by two to get their…

A: A boxplot is a data visualization plot that tells us whether the data set is symmetric or not. In a…

Q: why the median is reliable to report as the middle value of the data than the mean when there are…

A: The mean is the average value of the data set. It is calculated by summing up all the observations…

Q: the sticker prices ( in dollars) of 11 vehicles at a car dealership are listed  39144, 40872,…

A: Given information- We have given the sticker prices (in dollars) of 11 vehicles at a car dealership.…

Q: How is the frequency of the segmentation set?

A: Segmentation is an important part of statistics. The Heterogeneous data is divided into a…

Q: Illustrate Interpret significant and non-significant differences?

A: If the p-value is below the provided level of significance, than the null hypothesis would rejected…

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: Can the X-bar chart be used in order to see if the number of defectivesin a production timeslot is…

A: There are two types of Control charts: 1) Control charts for variables. 2) Control charts for…

Q: What is the mean of the geometric distribution given by

A: It is given that, X is a geometric variate with its pmf, P(x)=3-x = P(x)=(1/3)x ; x=0,1,2,.... We…

Q: What is the median race time in seconds for this group of students

A:

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: find 25th percentile   101,103,106,108,115,117,119,125,137,149

A:

Q: Make a stemplot of these data. Describe the overall pattern of the distribution. Are there any…

A: Steps for Stem-and-leaf diagram: In stem plot each of the observation is separated into two parts,…

Q: What is an outlier?

A: We have to describe the outlier. Outlier can be present in any dataset.

Q: What are the percentages of scores that fall between -1 and 0/0 and 1

A:

Q: is an outlier?

A: a) Outlier: The Observation which lies outside the control limit is called an outlier. an outlier is…

Q: if the whale is 48 feet is it an outlier?

A: here use basic of Normal distribution

Q: If IQR for the values: 79, 80, 25, 75, 69, .6 * ?110, 82 is 9, then determine the outlier(s)

A: given data

Q: Which point is outlier?

A: for the given data which point is an outlier?

Q: Find the median, Q1, Q3, interquartile range (IQR), and list any outliers. 1. 72, 32, 74, 66, 71,…

A:

Q: Find the median, Q1, Q3, interquartile range (IQR), and list any outliers. 1. 72, 32, 74, 66, 71,…

A: As per our guidelines we can solve first question and rest can be reposted. Q.1 Solution-: Given…

Q: What is the definition of these with examples Histograms, FrequencyTable, Stem & Leaf, Boxplot, and…

A: Definition

Q: Find the class frequency, midpoint and draw histogram and about how is it positively skews or not

A: Given, Data 67 68 66 73 70 66 76 65 72 64 72 74 69 63 65 62 71…

Q: Find the outliers in the following data : 280-500-300-450-330-370-400

A: data set : 280-500-300-450-330-370-400 Fisrtly arrange the data in ascending order  Then find first…

Q: 105,108,120,115,112,116,115,118,119,120,111,125,135,114

A:

Q: An observation is considered an outlier if it is below: An observation is considered an outlier if…

A: Given data is 53, 57, 64, 68, 70sample size(n)=5

Q: Identify all values that are outliers. If there is more than one outlier, separate them with…

A: Given data(X);(in ascending order) 16,40,42,43,46,47,47,49,53,55,56 n=11  (no. of observation)

Q: Summarize the effect different kinds of outliers can have on a data set in terms of how we interpret…

A: Global outliers : when we have value which is not in the anywhere the the the rest of the data set…

Q: What are the lower and upper fences to find outliers?

A: We know that  Outliers are data points which are differs significantly from all other observations.…

Q: Find the median of the calls received on 7 consecutive days 11, 13, 17, 13, 23, 25, 19.

A: Given observations are : 11, 13, 17, 13, 23, 25, 19.

Q: What is the class mark of the Median Class?

A: The question is about grouped frequency dist. Given :

Q: Is percentage vote for the Green Party considered nominal, ordinal, interval?

A: It is an important part of statistics. It is widely used.

Q: What is the outlier? 2, 2, 1,3, 5, 10, 2, 5

A: Lets arrange the data first from small to largest  1, 2, 2, 2, 3, 5, 5, 10  So, as we can see, Q2 is…

Q: Make a stemplot to display the distribution of pups born per year. Describe the shape, center, and…

A: The objective is to make a stemplot for the data:

Q: The mean is a better measure of location when there are no outliers.  True  False

A: The mean is a better measure of location when there are no outliers.

Q: Use the IQR to determine if any of the data in the data set are outliers.…

A: Given data set23,80,43,23,0,20,23,23,20,28sample size(n)=10

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.