Periodicity is one of disadvantage of quota sampling True False

Q: We can say a proximity measure is well designed if it is robust to noise and outliers. True/False

A: True.

Q: A scatterplot maps out cases as dots on a bivariate graph. true false

A: Given question is,A scatterplot maps out cases as dots on a bivariate graph.true false

Q: What is meant by sampling frame?

A:

Q: Which measure of central tendency should be used if the data are not skewed, does not contain any…

A: Which measure of central tendency should be used if the data are not skewed, does not contain any…

Q: If the distribution of the population is bimodal, then the sampling distribution for the sample…

A: Bimodal means the distribution which has two peaks. Using central limit theorem, the sampling…

Q: 1. You're taking a multiple-choice exam and you don't know the answers to two of the questions. Each…

A: You are taking a multiple-choice exam.and don't know the answer to two questionsi.e n=2Each question…

Q: When data is normally distributed the mean equals the median True False

A: Normal distribution

Q: through the researcher and his/her interaction with participants and the setting because qualitative…

A: In qualitative research, information collected is always filtered through the researcher and his/her…

Q: true, if the answer is absolutely true. otherwise, if the statement are either true or false, answer…

A: statement :  if the dataset has large outliers, than the data have positively skewed distribution we…

Q: a genetics experiment involves a population fo fruit flies consisting of three males named Chris…

A:

Q: When the sample size is increased, the spread of the sampling distribution for a sample mean (select…

A: Spread measures define how similar or varied the set of observed values for a given variable (data…

Q: If we delete the largest observation from a sample, then the sample mean and variance will both be…

A: The mean is the average of a group of numbers, and the variance measures the average degree to which…

Q: When data is normally distributed the mean equals the mode. True

A: Normal distribution

Q: We discussed a couple of problems that arise during sampling. Describe one of these problems and…

A:

Q: What is true about the sampling distribution of the mean retings reported to you by the market firms

A:

Q: THEOREM 2.4 The number of distinct permutations of n things of which n1 are of one kind, n2 of a…

A: Given: Theorem 2.4 and Theorem 2.5

Q: i. var (VSRSWOR): = N-125² Nn

A: We need to show that:-

Q: The median of a sample is the most frequently occurring value in the sample. A) True False

A: The median is the value that separates the higher half of the data from the lower half of the data.

Q: Is it possible that creating a Boxplot could show outliers but z-scores show no outlier? Explain…

A: In order to find the outliers, box plot helps to find it is more easier way.

Q: c) If the psu population totals are highly correlated with the selection probability, then an…

A: Given problem Given that   If the psu population totals are highly correlated with the selection…

Q: Central Limit Theorem   a) When the population distribution is Normal. Predict: How do you think…

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

Q: Central High School is a very large school with lots of boys and girls. Three students are to be…

A: From the provided information, There are lots of boys and girls in central high school. Three…

Q: The sampling variability of the sample means becomes smaller as the sample size n gets larger. True…

A: Here we need to determine whether the given statement is true or false.

Q: Sample means from multiple samples will have a sampling distribution  True  False

A: We know that,  Sample means differ from sample to sample and thus create a distribution which is…

Q: Since non-probability sampling is faster, cheaper, and easier then probability sampling it should be…

A: The sampling technique, in which the probabilistic nature of the subject being selected for a sample…

Q: Sampling error can be avoided   Multiple Choice   by eliminating nonresponses (e.g., older people).…

A: Given problem Given that   Sampling error can be avoided

Q: What is non probability sampling and explain the types of the same

A: Probability sampling is the sampling technique that allows a researcher to select a sample where the…

Q: The Line of Best Fit shown on the scatter plot below was not drawn well. What is the worst thing…

A:

Q: A scatter diagram cannot be created for more than 100 data values. O True False

A: FALSE

Q: The mean of the sampling distribution of the sample mean is smaller than the mean of the…

A: According to Central limit theorem, when repeated sample of size n is drawn from a population with…

Q: Give an example how to use inferential statistics (any field of study) to answer issues about a…

A: inferential statistics allows you to make predictions (“inferences”) from that data. With…

Q: Multi-stage sampling with practical example

A: Given information: It is required to explain Multi-stage sampling. Also, to explain the topic with…

Q: Samples that are not chosen randomly from the population might exhibit bias   True  False

A: Drawing the sample from population is known as sampling procedure. If we did not choose appropriate…

Q: The rows of data set represent observations true of false

A: We know that, if there is a dataset then A row represents the observation whereas The column…

Q: If you calculate the sample covariance between two variables X and Y equals one, then there must be…

A:

Q: For a set of data if the mode < median<mean then the histogram for this data is right skewed. true…

A: A histogram is said to be skewed to the right if its most of data falls on the right side of the…