A pine tree that is 140 feet tall is added to the sample. How will this outlier affect the shape of the box plot?

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: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?

A:

Q: According to a gallup survey of boys 77% of boys had played computer games in the past week compared…

A: Let p1 be the percentage of boys had played computer games  p2 be the percentage of girls had played…

Q: The median has a sampling distribution. Explain why or why not?

A:

Q: Out of 300 students in the school, 225 passed an exam. What would be the mean of the sampling…

A:

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A: There are 153 out of 360 (n) elementary school children found as above grade level readers. The…

Q: Describe the sampling distribution of the sample proportion when large samples are drawn.

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…

Q: In a large data set, the 49th percentile is 523 and the 71st percentile is 675.  About what…

A:

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: 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: Imagine a dataset with a mean of 60 and a median of 40, what does this tell you about skewness?

A: Given : mean = 60  median = 40

Q: The sample for the survey is ...

A: Here determine sample from which identify no o people support Lafeyette leopard team

Q: Find a sample size for which the median will always equal one of the values in the sample.

A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…

Q: Based on the boxplots and the mean/median relationship what is the shape of each data set? Explain…

A: Given:

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: Henry conducts a survey at his middle school to determine the students' favorite after-school…

A: There are four main types of probability sample. Simple random sample: In this, every member of the…

Q: Based on the sample, predict the number of adults in Palm City whose main source of news is…

A: In sample, number of adults whose main source of news is newspaper, X = 54 Sample size n =…

Q: Given the data set, show how the variance and z-score of each grade is found.

A: Variance is the measure of dispersion. It provide the deviation of data set from the mean. It is…

Q: Can the median split a distribution into a 85% : 15% frequency ratio of the observations?

A: Given: split the distribution into a 85% : 15% frequency ratio of the observations

Q: Take a random sample of 50 pages from a book and estimate the proportion of all pages that contain…

A: Here we want to find proportion of pages that contain figures.

Q: Explain what is meant by the term “sampling distribution”.

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: 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: In sampling, explain why obtaining a representative sample is important.

A: Representative sampling is important in sampling technique.

Q: estimate the sample size

A: An estimate of sample size: The appropriate sample size for estimating the mean of a variable from…

Q: The percentile gives an indication of the relative position of the scores. True or False?

A: Partition values are the values which divide the series into a number of equal parts.  * Three…

Q: If we wanted a random sample of students in a cafeteria, why couldn't we just take the students who…

A: Answer: Here random word itself says that we couldn't just take the students who order coke with…

Q: Explain how a sampling distribution of a sample can be constructed.

A:

Q: Check for outliers

A: Outliers are the points in a dataset that does not follow the common trend of the data or greatly…

Q: A researcher used the sample median as a measure of center instead of the sample mean. What do you…

A: Three central tendencies are given as: Mean Median Mode We use these measures of central…

Q: Explain about if larger the sample size, what does this reflects.

A:

Q: Describe the sampling distribution for the sample means

A: Given, n=100 μ=55 σ=20

Q: A researcher plans to conduct a survey. If the population on High City is 1,000,000 find the sample…

A: To calculate the sample size (n) given the population size (N) and a margin of error (e), we use…

Q: describe why it is important for the sample in your study to be as representative as the source

A: Representative samples are important as they ensure that all relevant types of people are included…

Q: does the outlier, P, have the greatest effect on the line of best fit? a) b) C d)

A: Solution

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…

Q: doesn't the mean of a sample population equal the true proportion?

A: Yes, the sample population is equal to true proportion.

Q: Someone claims that, since the mean of the sampling distribution equals the population mean, any…

A:

Q: Explain the four different types of sampling and give an example of each.

A: Different types of sampling methods with examples.Types of random samplings(1) Simple random…

Q: Explain briefly about Multiple Sampling Plan?

A:

Q: Explain the relationships among the sample proportion, the number of successes in the sample, and…

A: Sample proportion: The fraction of number of members sampled which have a specified attribute and…

Q: In a sample of 20 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 164…

A:

Q: Make your own example of mean and variance of a sampling distribution. Also, construct the sampling…

A: Given that We have to Make own example of mean and variance of a sampling distribution. Also,…

Q: State the mean and variance of the sampling distribution of the mean?

A:

Q: If a survey of a movie shows that 50% of all people who like the movie, enjoyed the official movie…

A: Introduction: Population of interest: The population of interest includes all the individuals of…

Q: A sample of students involved in laboratory accidents was categorized by age. The results appear as:…

A:

Q: You want to gather some data about students at a local high school. Match the name of the sampling…

A: given

Q: Explain what it means that a sample must be representative of the population.

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

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.