If [0.64, 0.82] is a confidence interval for the population proporlion. Find the value of the point estimator of the population proportion. Select one: O a. 0.73 O b. 0.70 O c. 0.74 O d. 0.72

Q: Use the given confidence interval to find the population proportion margin of error. 0.54 < p < 0.68

A: Confidence interval is given by 0.54 &lt; p &lt; 0.68 Now, the margin of error is given by,  MOE =…

Q: In a survey, the planning value for the population proportion is  p* = 0.33.  How large a sample…

A: It is given that the population proportion is 0.33.It is known that the critical value for 95%…

Q: If we want to provide a 95% confidence interval for the mean of a population when the population…

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Q: A If n=21, ¯x (x-bar)=34, and s=8, construct a confidence interval at a 98% confidence level. Assume…

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Q: Construct the confidence interval for the population mean mean μ.  c=0.90​, x (x-bar)=16.2​, σ=10.0…

A: The 90% confidence interval for the population mean µ is calculated as follows:

Q: For the following paired observations,please calculate the 95% confidence interval for the…

A: Given: data A={16.51, 15.3 , 20.12 } B={11.22 , 11.77 , 13.28 } Calculate the 95% confidence…

Q: If n=19, (x-bar)=32, and s=11, construct a confidence interval at a 98% confidence level. Assume the…

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Q: Which of the following would result in the narrowest confidence interval? O A sample size of 30 with…

A: Given, The values of α and n.

Q: Construct the indicated confidence interval for the population mean p using the t-distrib c=0.90, x=…

A: Solution: Given information: n= 9  Sample size x= 13.3  Sample mean s=2.0 Sample standard…

Q: If n = 330 and X = 264, construct a 95% confidence interval for the population proportion, p.

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Q: If Xbar=81​,S=20​,and n=36​,and assuming that the population is normally​ distributed, construct a…

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Q: If n=24, x(x-bar)%=D30, and s=7, construct a confidence interval at a 98% confidence level. Assume…

A: The random variable X follows normal distribution. The sample size is 24. The sample mean is 30. The…

Q: In a survey, the planning value for the population proportion is p* = 0.25. How large sample should…

A: Given information Error = 0.09 Population proportion = 0.25 Confidence level = 0.95

Q: When alpha is set to 0.01 what is the confidence level ? answer choices : 0.01 0.02 0.98 0.99

A: From the provided information, Level of significance (α) = 0.01

Q: If 1850, 1970 is a confidence interval for a population mean. Find the value of the point estimator…

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Q: Kim wants to determine a 80 % confidence interval for the true proportion ? of high school students…

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Q: If X = 66, S = 16, and n = 64, and assuming that the population is normally distributed, construct a…

A: Given data: Sample mean = 66 Sample standard deviation = 16 Sample size = 64 Confidence level  = 95%…

Q: (c) How large would the sample need to be so that a 95% confidence interval would have a margin of…

A: Given that sample mean xbar=12.05 and population standard deviation=6.55 3) find sample size of…

Q: In a survey, the planning value for the population proportion is p* =0.25 . How large a sample…

A: Given: p* = 0.25α=0.05MOE=0.09

Q: Suppose you want to construct a 95% confidence interval for the proportion of people who will stop…

A: We have given that,  Margin of error (E) = ± 4% = ±0.04 and confidence interval = 95% Then,  We will…

Q: Which of the following would result in the narrowest confidence interval? A sample size of 100 with…

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Q: A bank wishes to estimate the mean credit card balance owed by its customers. The population…

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Q: If n=12, x=47, and s=7, construct a confidence interval at a 98% confidence level. Assume the data…

A: According to the provided information,

Q: find out the confidence interval for population proportion  for given data  [ 4 decimal places ]…

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Q: Use the given data to construct a confidence interval of the requested level. X = 178, N=531,…

A: Given : Sample Size, n = N = 531 Number of successes, x = 178

Q: . A researcher collects a sample of 24 measurements from a population and wishes to find a​ 99%…

A: The degrees of freedom is,

Q: C. Find the length of the confidence interval given standard deviation) 1. s = 2.36, n = 350,…

A: Given that  C) 1) s=2.36  , n=350 , 99% confidence  NOTE:- According to bartleby guidelines expert…

Q: If X=99​, S=7​, and n=64​, and assuming that the population is normally​ distributed, construct a…

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Q: 13, ¤(x-bar)=39, and s=16, construct a confidence interval at a 90% confidence level. Assume the…

A: From the given information, n=13 x-bar=39 s=16 Confidence level=90% Significance level=10%…

Q: In a survey, the planning value for the population proportion is .25. How large a sample should be…

A: We have to find sample size..

Q: If X=72​, σ=13​, and n=66​, construct a 95​% confidence interval estimate of the population​…

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Q: If X=135, a=29, and n = 34, construct a 99% confidence interval estimate of the population mean, μ.…

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Q: If (220 ,230) is a confidence interval for the population mean p, then the point estimator in this…

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Q: A 99% confidence interval for a population mean was reported to be 140 to 150. If population…

A: It is given that the 99% confidence interval for a population mean is 140 to 150. The population…

Q: If n=21, (x-bar)=34, and s=8, construct a confidence interval at a 98% confidence level. Assume the…

A: Here, mean is 34 and standard deviation is 8. Sample number is 21. We will use one sample t…

Q: Find and interpret the 95% confidence interval for μ, if ¯y = 70 and s = 10, based on a sample size…

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Q: Construct the indicated confidence interval for the population mean using the t-distribution. Assume…

A: Given data,c=0.95, x=12.9, s=4.0 n=5df=n-1=4α=0.05t-critical value is tc=2.776

Q: use the given degree of confidence and sample date to contruct a confidence interval for the…

A: Sample size = n = 124 Sample number of events = x = 20 Sample proportion = p̂ = x/n = (20/124) =…

Q: If X̅ = 65, ? = 20 ??? ? = 36, construct a 95% confidence interval estimate for the population mean,…

A:

Q: If n=18, x-bar=47, and s=6, construct a confidence interval at a 98% confidence level. Assume the…

A: In question, Given that n=18, x-bar=47, and s=6. Then we'll construct a confidence interval for…

Q: If n=14, ¯x¯(x-bar)=50, and s=4, construct a confidence interval at a 99% confidence level. Assume…

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Q: If n=26, (x-bar)=31, and s=14, construct a confidence interval at a 90% confidence level. Assume the…

A: Confidence interval give a range of values for the unknown parameter of the population. The width of…

Q: ch. The "confidence interval" lying between +1 SEM and -1 SEM would give us a “confidence level"…

A: The 68-95-99.7% (Empirical) Rule: For a normal distribution, the empirical rule (68-95-99.7% Rule)…

Q: If [1740, 1850] is a confidence interval for a population mean. Find the margin of error. Select…

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Q: In a survey, the planning value for the population proportion is p* = 0.25. How large a sample…

A: Given : Population proportion (p*) = 0.25 Confidence level = 95% So ; significance level (α) =…

Q: In a survey, the planning value for the population proportion is p* = 0.25. How large a sample…

A: Given,sample proportion(p*)=0.25margin of error(E)=0.08α=1-0.95=0.05α2=0.025Z0.025=1.96   (from…

Q: . Find the length of the confidence interval, given the following data: s= 6.5, n = 15, confidence…

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Q: If n=21, ¤(x-bar)=39, and s=7, construct a confidence interval at a 99% confidence level. Assume the…

A: Sample mean =39Standard deviation = 7Sample size = 2199% confidence level

Q: For what type of variable does it make sense to construct a confidence interval about a population…

A: In this case, we need to find the correct option for the given question.