the 85% confidence interval of the population mean

Q: Use the confidence interval to find the margin of error and the sample mean. (1.71, 1.99)

A: Solution:  Given data: confidence Interval = (1.71, 1.99) To find: 1.Margin of error 2. Sample mean…

Q: Explain in what situations you can use the z statistic to construct a confidence interval for the…

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Q: A 90% confidence interval for the population mean ?is 18 <u< 24, What is the sample mean

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Q: Construct and interpret a 90% confidence interval for the population mean µ.

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Q: Decreasing the sample size, while holding the confidence level the same, will do what to the length…

A: Introduction: Confidence interval is the interval estimate of the population parameter. It is the…

Q: Construct a 95% confidence interval of the mean pulse rate for adult males

A: Given,       Males      Females 86 71 80 85 72 62 91 82 50 74 60 72 57 69 66 75 52 55…

Q: Use the confidence interval to find the margin of error and the sample mean. (0.578,0.740)

A: Suppose the confidence interval is given as : (a,b) (x-MOE , x+MOE) = (0.578 , 0.740) Then to obtain…

Q: A 95% confidence interval for the true mean population value, P, is given by:

A: The confidence interval is defined as Point estimate ± Margin of error

Q: Vhat is the confidence interval estimate of the population mean p7

A: Given: n=49X=2.9σ=18.7We have to find 95% confidence interval for mean μ.Zα/2=1.96

Q: the 90% confidence interval.

A: Suppose that a random sample of 13 that is n=13 adult U.S males has a mean height μ=x=71 inches and…

Q: The confidence interval for a population porportion is (0.34, 0.5). What the the sample proportion…

A: Given  The confidence interval for a population proportion (0.34,0.5)  estimate the sample…

Q: Construct the confidence interval for the population mean.

A: Answer:

Q: Construct a 95​% confidence interval to estimate the population mean when x=133 and s​ = 35 for…

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Q: We weigh forty neonates and obtain a sample mean of 10 pounds with a standard deviation of 2 pounds.…

A: First, we find the critical value for 99% confidence interval.

Q: Construct a 95​% confidence interval of the population proportion using the given information.…

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Q: Find the population proportion? find the margin of e? construct confidence interval ?

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Q: If n = 250 and X = 200, construct a 99% confidence interval for the population proportion, p. Give…

A: As given, n = 250 and x = 200.  It is asked to construct a 99% confidence interval for the…

Q: Calculate a confidence interval based on the sample data and interpret this confidence interval.

A: Confidence interval for two sample proportion is calculated using the sample proportion and sample…

Q: Construct a confidence interval of the population proportion at the given level of confidence. X =…

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Q: 22. An investigator quantifies her uncertainty about the estimate of a population mean by reporting…

A: Confidence Interval:Confidence interval is the interval estimate of the population parameter. It is…

Q: The 90% confidence interval for the population proportion p is (,) The 95% confidence interval for…

A: here n = 634 p^ = proportion of males gone to dentist pin past year = 390634 = 0.6151 z-critical for…

Q: What is meant by degrees of freedom? When should the t distribution be used to find a confidence…

A: Degrees of freedom means the number of values in set are free to vary . Or number of independent…

Q: Use the confidence interval to find the margin of error and the sample mean.   (0.676,0.800)

A: The margin of error is the most common term which we use in a confidence interval. It is the degree…

Q: c. Find the confidence interval for the population mean with confidence level of 99%

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Q: a 90 percent confidence interval for a population mean indicates that

A: Given problem Given that     a 90 percent confidence interval for a population mean indicates…

Q: Which distribution (z or t) should you use to construct a confidence interval and why? Construct a…

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

Q: es. What is the upper bound of the 95% confidence interval for the average jump increase?

A: Sample mean  = 1.99 Sample standard deviation  = 0.92 n = 49

Q: A 95% confidence interval is narrower than a 90% confidence interval for the same data set. O True O…

A: We have to find given probability.

Q: Is 12 minutes the margin of error for this 95% confidence interval v [Select ]

A: The 95% confidence interval for the average arrival time before departure for all air travellers is…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

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Q: If n = 220 and X = 176, construct a 95% confidence interval for the population proportion, p. Give…

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Q: find the t/α2 value for a 95% confidence interval for the mean when the sample size is 10

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Q: Find a Confidence interval for the true Population Proportions if n = 30,        x = 75, and the…

A: From the given information, X=75 and n=30.

Q: The width of a confidence interval for μ is not affected by A. The sample size. B. The confidence…

A: The formula of confidence interval for population is, CI=sample mean±ME=sample mean±critical…

Q: and X = 96, construct a 90% confidence interval for the population proportion, p. Give your answers…

A: Given X=96 N=120

Q: A confidence interval for a population proportion p is 0.635 to 0.700. What is the margin of error?

A: We have given that confidence interval for a population proportion p is 0.635 to 0.700.

Q: A 90% confidence interval for the population mean is 18 < mu < 24. What is the sample mean?

A: sample mean = (upper limit+lower limit)/2

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

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Q: he standard deviation and the mean of 25 students scores are 10 and 38, respectively. Construct a…

A: Given that  Sample size (n) = 25 Mean (x¯) = 38 Standard deviation (s) = 10 Confidence level (C) =…

Q: In a 95% confidence interval the quantity 0.95 = 1 – 0.05 is called the confidence coefficient. True…

A: The confidence coefficient is the confidence level stated as a proportion, rather than as a…

Q: ation, contruct a 90% confidence interval for the true

A: The value of z at a 90% confidence level is 1.645, which can be obtained by using the standard…

Q: Find the confidence level and α for an 80​% confidence interval.

A: Given confidence level =80%

Q: hat is the confidence interval estimate of the population mean u? ]mg/dL <u<Omg/dL

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Q: How do you find the confidence interval for a population mean with known standard deviation?

A: Confidence intervals: Confidence intervals are the limits for the point estimate of population…

Q: (a) Calculate and interpret a 95% confidence interval for population mean cadence. (Ro

A: Given that sample size n = 20 Sample mean = 0.9270 Standard error of mean is SEmean = 0.0180 At 95%…

Q: A 95% confidence interval for the population mean is 18 < mu < 24. What is the sample mean?

A: We know that, Confidence interval for mean is given by, (X bar +-Z*sigma/√n) So, given that,  (X bar…

Q: If n = 550 and X = 440, construct a 90% confidence interval for the population proportion, p. Give…

A: Given information:Total number of trials (n) = 550Number of success (X) = 440Confidence level = 0.90

Q: particular summer camp. Calculate the 90% confidence interval for the proportion of students…

A: here given ,  n= 900 now here 630 out of 900 students have attended a particular summer camp p^ =…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.