To calculate the margin of error of a sample estimate, you must know all but which one of the following?  a) size of the sample  b) standard error of the sampling distribution c) the population value  d)desired level of confidence in the margin of error

Q: In order to assess the opinion of students at the University of Minnesota on campus snow removal, a…

A: Definition: Cluster sampling: Cluster sampling is a method of sampling wherein subgroups are formed…

Q: According to the Central Limit Theorem, as the sample size increases, the sampling distribution

A: It is widely used in all forms of statistics . It is a very basic LIMIT THEOREM .

Q: .In a population divided into 4 strata, the sampling that is practiced in each of these strata is:…

A: In stratified random sampling, based on some characteristic, the population is divided into two or…

Q: Find the mean of the set of data below and construct a sampling distribution, without replacement…

A: Mean is generally represented as total sum of all observations divided by number of observations.…

Q: The required sample size is (Round up to the nearest whole number as needed.) Does the sample size…

A: Sample mean is within 0.014 of the population mean, Margin of error=0.014 At 98% confidence…

Q: Find the mean of the sampling distribution of sample means using the given information. Round to one…

A: Here, mean is 44 and standard deviation is 8. Sample number is 49. We will use sampling…

Q: (b) What is the minimum sample size needed using a prior study that found that 44% of the…

A: It is given that margin of error (E) is 0.03 and the confidence level is 0.95.

Q: The population of scores from which you drew the samples for a sampling distribution is called the

A: Solution The population of scores from which you drew the samples for a sampling distribution is…

Q: a) With no prior research, what sample size should you gather in order to obtain a 0.015 margin of…

A: When we don't have any prior information about the population proportion, we generally take it as…

Q: ​If, in a random sample of 200 items, 65 are​ defective, what is the sample proportion of defective​…

A: x =Number of defective items n = Sample size

Q: Find the mean of the sampling distribution of sample means using the given information. Round to one…

A: Given information- Population Mean µ = 62 Standard deviation (σ) = 10 Sample size, n = 81 We have to…

Q: What is a sampling distribution? What do we know about the shape and characteistics of the sampling…

A: In a statistical investigation, we try to asses a general problem respect to one or more…

Q: The larger the sample size, the smaller the standard error. True or Fale?

A: Given that, The larger the sample size, the smaller the standard error.

Q: Find the mean of the sampling distribution of sample means using the given information. Round to one…

A: X1,X2,.....,X9 be the 9 samples from the population.Then the sampling distribution of sample mean is…

Q: (a) What would the sampling distribution of the sample mean for a random sample of size n=2 years…

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Q: find the standard error of mean for each sampling distribution. O=30, N=4. O=30, N=16. O=30, N=64.

A: Solution: To find standard error of the following given data  standard error=sigma/sqrt(n) 1):…

Q: (b) What would the sampling distribution of the sample mean for a random sample of size n=9 years…

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Q: Obtain standard error of sample proportion p.

A: Standard error is the standard deviation of the sampling distribution of an estimator.

Q: Using the numbers 1, 2, 3, 4, 5, and 6 as the elements of the population, find the mean of the…

A: If we take repeated random samples of size n, from a population for a quantitative…

Q: Determine which of the following sampling methods is the best way to select a group of people for a…

A: Concept: Convenience sampling: It involves the data from reliable and convenient people. For…

Q: 1. (Use Lynch's Formula) How many sample units must be obtained from 6,500 CSTCians if a 5% margin…

A: Given: Population size is 6500 Margin of error is 5% i.e., 0.05 Required: To find the number sample…

Q: Find the probability that mean of sample size 36 will be negative.

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Q: Given the desired margin of error, population standard deviation, and level of significance, we use…

A: Solution

Q: Construct the sampling distribution of the sample mean for the following population and with the…

A:

Q: a. Determine the sample proportion, p, of college students who own shares of stock. b. If the…

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Q: What happens to the sample size when you don’t know a prior sample proportion?

A: To calculate the sample size when we do not know prior sample proportion.

Q: If N is the size of the population and n is the size of the sample, find the sampling fraction?

A: From the provided information, The population size is N and the sample size is n.

Q: Give an example of computing an appropriate sample size using the length of the interval.

A: Solution : Formula for computing sample size using the length of interval is, n = Zα2σd2 where , σ =…

Q: determine the mean and standard deviation of sampling distribution using n=1200, p=0.499

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Q: (b) What would the sampling distribution of the sample mean for a random sample of size n=9 policy…

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Q: Find the values of the UCL and LCL for the (x-bar) chart for this data, and round your answers to 3…

A: Refer to the table of sample values in Section 8.2 Exercise 6 of the text.Find the values of the UCL…

Q: In acceptance sampling, if the number of defects in a sample is less than or equal to the acceptance…

A: In acceptance sampling, if the number of defects in a sample is less than or equal to acceptance…

Q: For a fixed sample size, the lower we set α, the higher is the ___________.

A: If the level of significance is set as lower, then there is a decreasing chance of committing a type…

Q: Suppose the accounts receivable are arranged randomly. What kind of sampling she should choose? (b)…

A: Aida is an auditor in a firm. She verified the amounts on 5% of the accounts and estimate the…

Q: 1. what is the sample size of the body?

A: The association exist between the two categorical variable are calculated using chi square test. The…

Q: To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at…

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Q: Define the standard error for the sampling distribution of proportions.

A: Introduction: The standard deviation of the distribution of sample proportion is called the standard…

Q: To determine customer opinion of their safety features, Daimler - Chrysler randomly selects 80…

A: In simple random sampling, each of the unit is population has equal chance of being selected in the…

Q: Consider the sampling distribution of the sample mean x.

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Q: To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at…

A: The study is to obtain the which sampling to be used.

Q: 4b. Using the same information from 4a, what is the standard error of the sampling distribution?…

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Q: estimate the population proportion p,what is the minimum sample size we need in order to achieve a…

A: Solution: From the given information, confidence level is 0.95, p=0.1 and E=0.01.

Q: Find the mean of the sampling distribution of sample means using the given information

A: We have given that  Mean, μ = 65 Standard deviation, σ = 12 Sample size, n = 16

Q: Find the mean of the sampling distribution of sample means using the given information. Round to one…

A:

Q: Find the values of the UCL and LCL for the  (x-bar) chart for this data, and round your answers to 3…

A: The sample values, average values and range values are given by sub group wise. Here, the subgroup…

Q: In estimating the sample size necessary to estimate p, if there is no good approximation for the…

A: Denote p as the true proportion and the point estimate of p is p̂ = x/n, where x denotes the number…

Q: Sketch the sampling distribution of xand calculate the probability that the sample mean will be…

A: here given, sample size n = 250 population mean and standard deviation is as follows  μ = 188and…

Q: Construct the sampling distribution of the sample mean for the following population and with the…

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Q: Determine the sample size necessary to estimate p for the following information.

A: here for 4th part  MOE  <= 0.01  confidence level = 99%

Q: Is the statement below true or false? The mean of the sampling distribution of p is p. Choose the…

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.