Which of the following definitions is not correct a. A sample is a subset of the population that is used to represent the whole population b. Strata are smaller groups of the population formed based on the size of the sample relative to the population. c. A stratified random sample is a population sample that requires the population to be divided into strata so that random samples can be taken from each stratum. d. A population consists of all members of a defined group that possess specific characteristics that you are interested in studying

Q: Indicate which of the following situations involve sampling from a finite population andwhich…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.90, o…

A: We need to find , the minimum sample size n needed to estimate μ for the given values of c, σ and E.…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.98, o =…

A: We have given that,  Population standard deviation (σ) = 7.3, Margin of error (E) = 2 and confidence…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.98, o…

A: Refer Standard normal table/Z-table OR use excel function "=NORM.S.INV(1-0.01)" to find the critical…

Q: Find the minimum sample size n needed to estimate u for the given values of c, 6, and E. c= 0.98, 6…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: A simple random sample size of n=81 is obtained from a population that is skewed right with u=81 and…

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Q: d the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.98, o =…

A: Given that  Margin of error =E =1 Population standard deviation =5.2

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c = 0.95, o…

A: We have given that,  Confidence level (c) = 0.95 or 95% , population standard deviation (σ) = 7.8…

Q: Find the minimum sample size n needed to estimate y for the given values of c,o, and E. C= 0.95, o=…

A: Here, C= 0.95, σ= 9.4, E= 2, and n=30.

Q: Find the minimum sample size n needed to estimate µ for the given values of c, o, and E. c= 0.90, o…

A: Margin of error is the error due to random sampling. The margin of error decreases with increasing…

Q: 1. Identify each of the following as either descriptive or inferential statistics. a. The average…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c =0.98, o…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.90, o…

A: Solution: From the given information, confidence level is 0.90, σ=8.6 and E=2.

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o…

A: We have given that,  Margin of error (E) = 1, population standard deviation (σ) = 9.4 and confidence…

Q: Suppose a population of size N = 160 is stratified into two regions according W = 0.5625 and W2 =…

A: sample 1 sample 2 x y x y 5.38 17.02 11.03 40.95 0.42 1.21 7.35 26.62 4.94 16.31 3.08 11.3…

Q: Which of the following definitions is not correct a. A sample is a subset of the population that is…

A: Stratified Random Sampling: The whole procedure of dividing the population into the strata and then…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.98,…

A: Givenc=0.98standard deviation(σ)=6.5Margin of error(E)=2

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.90, o=…

A: According to the given information, we have Margin of error, E = 1 Population standard deviation =…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o…

A: We have given that,  Confidence level (c) = 0.95 and population standard deviation (σ) = 9.2 and…

Q: A. Identify the population and sample in each item below.roms inol enotb 1. Amount of monthly…

A: Identify the population and sample in each item below.   1. Amount of monthly pension receiving by…

Q: Given the joint distribution X** of Red 1. 2 3. 4. 0. 6/252 12/252 3/252 12/252 54/252 36/252 3/252…

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Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o=…

A: We need to find the minimum sample size n needed to estimate μ for the given values of c, σ and E.…

Q: The following dotplot shows the cost of electricity during a summer month for a random sample of 50…

A: Introduction - mean =sum of observations total number of observations Standard deviation…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.90,…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. C= 0.95, o…

A: Given that, C = 0.95 E = 1 Standard deviation = 8.7

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.90, o…

A:

Q: According to the central limit theorem, if a sample of size 100 is drawn from a population with a…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, a, and E. C= 0.95, a=…

A:

Q: Find the minimum sample size n needed to estimate µ for the given values of c, o, and E. c= 0.90, o…

A: From the provided information, Confidence level = 0.90 Population standard deviation (σ) = 8.7…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E c= 0.95, o =…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, andE. c= 0.98, o =…

A:

Q: Find the minimum sample sizen needed to estimate p for the given values of c, o, and E. c= 0.98, o =…

A: From the provided information, Population standard deviation (σ) = 8.9 Confidence level = 0.98…

Q: Find the minimum sample size n needed to estimate u for the given values of c, 6, and E. c= 0.95, 6…

A: Given,   Margin error = 2 Standard deviation = 8.8   Critical value: Using z-table, the z-critical…

Q: 4. A finite population consists of 8 elements. 10 10 10 10 10 12 18 40 How many samples of size n =2…

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Q: ad the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.90, o =…

A: We have given that,  Population standard deviation (σ) = 5.1, margin of error (E) = 1 and confidence…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c = 0.90, o…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o…

A:

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.98,…

A: From the provided information, Confidence level = 0.98 Population standard deviation (σ) = 7.8…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.90, o…

A: Required margin of error , E= 22  Population standard deviation σ\sigma = 8.98.9  Confidence…

Q: We observe a sample of size 2 for which X1 = 3 and X2 = 1. Compute the MLE for p if you know that p…

A: The MLE is estimator which maximizes the likelihood function or log-likelihood function. So first we…

Q: Find the minimum sample size n needed to estimate μ for the given values of​ c, σ​, and E. c=0.95​,…

A: Given information, c=0.95 σ=7.2  E= 1 Significance level=1-0.95=0.05 From the standard normal table,…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o…

A:

Q: A vandom sompde of size lo is taren from a population with unkno wn (M) and variawe (6). let X and S…

A: It is given that, We have a random sample of size 10 from a population with unknown μ and σ2. If we…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.95, o =…

A: Here we need to find the minimum sample size required for the 95% confidence level. Given margin of…

Q: Indicate which of the following situations involve sampling from a finite population andwhich…

A: a. Finite population: If the population is countable, then the population is termed as finite…

Q: the minimum sample size n needed to estimate μ for the given values of​ c, σ​,

A: The sample size can be calculated as: n=z×σE2 Here, c = desired confidence level E = The allowable…

Q: Let X be a quantitative variable whose values are form a population under study and X⎯⎯⎯⎯ be the…

A: The provided information are: Population standard deviation (σ) = 149 Sample size (n) = 196

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.95, o…

A: Given information Standard deviation σ = 9.4 Confidence interval = 0.95 Significance level(α) = 1-…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.98,…

A: Given,c=0.98 , σ=7.3 , E=2and Zc=Z0.98=2.3263     (from Z-table)

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.