a) Explain the difference between simple random sampling and convenience sampling. Discuss the advantages and disadvantages of simple random sampling and convenience sampling. Is convenience sample more commonly used in psychology than simple random sampling? Why? b) Suppose a variable is normally distributed. What percentage of scores fall between two standard

Q: Data was collected for a sample of organic snacks. The summarized in the histogram below. 14 12

A: Histogram is the graphical representation of the continuous frequency distribution of the data set…

Q: what is simple random sampling in research

A: Simple random sampling is a basic type of sampling. In this sampling technique every unit in the…

Q: What is the difference between sample means and a distribution of sample proportions?

A: Given : Sample mean : Average of sample observations is known as "sample mean". Sample proportion :…

Q: If a population has a mean of 2.5, what is the mean of the sampling distribution if the sample size…

A: Introduction: It is required to find the mean of sampling distribution of the mean, when a sample of…

Q: To determine whether a sample should be treated as a simple random sample, which is more important:…

A:

Q: How is a sample related to a​ population?

A: Population is set of all elements about which we want to know. While the sample is a part of such…

Q: Are Random sample and Random sampling the same?

A: Sample is a small subset of a population .

Q: Explain the difference between an independent and dependent sample. Give an example of each.

A: Dependent samples:The two samples are said to be dependent if there exist an effect of one on…

Q: What is meant by the statement that the sample mean has a sampling distribution?

A: The parameters that describe a population, like mean, variance, and standard deviation, are already…

Q: Explain in your own words: What is sampling error? What is a representative random sample?

A: we explain in the following.

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: Effect of sample size on the sampling distribution. You are planning a study and are considering…

A: The sample size and sampling distribution are two integrally associated concepts in statistics.

Q: a PUP student is late for a class only about 50% od the time the LRT mons late about 30% of the…

A: Let A be the event that the student is late for class, and L be the event that the LRT is late for…

Q: Pooling (i.e. combining) two cross sectional datasets leads to an increase in sample size. True…

A:

Q: a researcher peformed the Mann-Whitney test and found a significant difference between psychologists…

A: Since, the population standard deviation known. Therefore, the value of z should be taken from…

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

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: What is the difference between Sample and Population? Provide an example of each.

A: Population -whole number of individuals Sample - a part of population taken randomly

Q: What is a sampling distribution of means? Use your knowledge of the standard error of the sample…

A:

Q: Develop a basic understanding of the properties of a sampling distribution based on the properties…

A: The properties of sampling distribution are:

Q: What is the importance of getting a sample from a population? When and why is it necessary?

A: The population is defined as a large group in which the units involved have the same…

Q: On a final exam a student was asked to define sampling error. He wrote:  "sampling error is roughly…

A: We know that  Sampling error : It is the difference between sampling statistic and the corresponding…

Q: What is the relationship between the mean of a population and the mean of its sampling distribution?

A:

Q: Why a casual or haphazard sample doesn’t qualify as a random sample?

A: Haphazard or casual sampling is where we try to create a random sample by haphazardly or casually…

Q: It is not important to collect samples randomly. True or false

A: Any sample must be collected using the random techniques. If the samples are not collected randomly…

Q: What is difference between random sampling and random assignment?

A:

Q: What is the symbol for the sample variance?

A: Explanation:

Q: Data was collected for a sample of organic snacks. The amount of sugar (in mg) in each snack is…

A: Sample size = sum of all frequncy