b) An investigator decided to conduct a research to describe the average number of females in each family. Considering the case of 200 families in the town. Describe what may contribute to the difference between the value of the sample statistics and its corresponding population parameter. c) How would the investigator control the above-mentioned phenomenon?

Q: A statistical procedure in determining which hypothesis is more acceptable as true or which…

A: HERE USE basic  hypothesis testing

Q: If the sample size is 30 for each group, there are 3 groups, and the mean score for football players…

A: Given data SSbetween = 60SSwithin = 105dfbetween = 3 dfwithin = 60α = 0.05Critical value of F is…

Q: Explain the meaning of the specified term Sample distribution

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Q: Based on that, the required sample size to estimate the population mean is equal to?

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Q: If we have measurement error in our data, and those errors are truly random, what will the average…

A: Average =Sum of errorsNumber of errors

Q: Two sets of sample data, A and B, are given. Without doing any calculations, indicate in which set…

A: INTRODUCTION :  BOX PLOT TECHNIQUE   In the Box plot technique, the Five number summary is used…

Q: What information do you need to decide on a sample size that will provide adequate statistical…

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Q: What are requirements for testing a claim about a population mean with a known?

A:

Q: Suppose that you want to compare the means of several populations, using independent samples. If…

A:

Q: Mention some of the factors that affect choosing a sample over a population when conducting a…

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

Q: explain the benefits and disadvantages of having a pilot study participant inside sampling frame

A: Benefits of pilot study participant inside sampling frame:-- * One of the advantages of conducting a…

Q: What kind of test is used to solve the test statistic value for the population proportion?

A: We want to tell you what kind of statistic and test are used for population proportion.

Q: Describe about the hypothesis testing for population mean.

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Q: What is the statement regarding a population parameter formulated for the sole purpose of being…

A: A hypothesis test.

Q: Identify two statistical methods other than a census for obtaining information.

A:

Q: It is defined as the maximum likely difference between the observed sample mean and the true value…

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Q: 9. Under what circumstances will the distribution of sample means be normal?

A:

Q: What is Two Related Samples?

A:

Q: Discuss what is the relationship between sample size and sampling error?

A:

Q: What is the difference between testing hypothesis on a population and testing hypothesis when…

A: Statistical hypotheses testing:   Hypotheses testing is used to make inferences about the population…

Q: Explain one possible advantage of using a paired sample instead of independent samples.

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Q: Provide an example (different from the ones considered in this section) of a procedure based on a…

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Q: Formulate the mean of the sampling distribution of the difference between means ?

A:

Q: State two differences between a cluster sample and a stratified random sample

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Q: What is the sample size of adults participated in this study?

A: We have to find the sample size for the given situation.

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Q: If the sample size is increased, the margin of error will decrease.   True or False

A: Given statement : " If the sample size is increased, the margin of error will decrease "

Q: explain why two parameters are used in a two sample test

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Q: What is sample size?

A: In this case, we need to define the sample size.

Q: Explain how to perform a two-sample z-test for the difference between two population proportions.

A:

Q: 5. The difference between the value of the sample statistic and the value of the corresponding…

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Q: What is the Importance of Equal Sample Sizes?

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A: Hint: Central value for two samples can be same.

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A: Assuming The sample size is 30 for each groupGiven data and calculation is shown below

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Q: What is one of the distinctions between a population parameter and a sample statistic?

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A: Note: Since you have posted a question with multiple sub-parts, we will solve first three subparts…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.