Calculus and Above

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1.Find the critical value zα/2 that corresponds to a 93%
1.Find the critical value zα/2 that corresponds to a 93% confidence level.2.Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.sample… read more
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Scott
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Choose a number between 600 and 1600 If we surveyed that
Choose a number between 600 and 1600 If we surveyed that many people at the 95% confidence level then what would the margin of error but remember to take both the answer and your number… read more
Keith Pelletier
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Given the following confidence interval for a population
Given the following confidence interval for a population mean, compute the margin of error, E.12.08<μ<12.72 E=… read more
Sandhya_sharma
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Do you have an excel file to calculate the sample size when
Hello! Do you have an excel file to calculate the sample size when total population, margin or error and confidence interval are provided. Assume p=0.5 for unbiased outcome. Can you please explain the… read more
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In the formula Confidence Interval Mean, besides E, what
In the formula for the Confidence Interval for the Mean, besides E, what group of symbol(s) represents the Maximum Error of Estimate? If a population has a standard deviation σ of 18.2 units, what is … read more
Ryan
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1. Item C in the description of the data collection instrument
1. Item C in the description of the data collection instrument lists variables 7, 8, and 9, which represent the respondent's general attitude toward each of the three shopping areas. Each of these var… read more
SusanAthena
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The same statistic equation is used to calculate a value for
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Chirag
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You answered similar questions previously but the data has
You answered similar questions previously but the data has slighly changed. Can you please provide details as to how you worked the problem? Thx #1 Find the sample size needed to estimate the percenta… read more
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Consider a normal population with µ = 25 and σ = 8.0. (A)
Consider a normal population with µ = 25 and σ = 8.0. (A) Calculate the standard score for a value x of 22. (B) Calculate the standard score for a randomly selected sample of 30 with = 22. (C) Explain… read more
Trigeoscal
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1) Consider a normal population with µ = 25 and σ = 8.0. (A)
1) Consider a normal population with µ = 25 and σ = 8.0. (A) Calculate the standard score for a value x of 22. (B) Calculate the standard score for a randomly selected sample of 30 with = 22. (C) Expl… read more
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For questions needing a probability table, please use the table
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Scott
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1) In the formula for the Confidence Interval for the Mean,
1) In the formula for the Confidence Interval for the Mean, what symbol(s) represents the Confidence Coefficient? 2) If a population has a standard deviation σ of 5 units, what is the standard error o… read more
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Statistics: How does sample size affect the length of the confidence
Statistics: How does sample size affect the length of the confidence interval? How does the margin of error affect the length of the confidence interval?… read more
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Pg.431 1)The mean of the sampling distribution of means is
Pg.431 1)The mean of the sampling distribution of means is equal to the mean of the population. T-F, and why or why not? 2) In the formula for the Confidence Interval for the Mean, if the Confidence C… read more
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Find the margin of error for the given values of c, s, and
Find the margin of error for the given values of c, s, and n. C=0.95, s=2.3, n=49 E=_________ (Round to three decimal places as needed) Construct the confidence interval for the population mean µ. C= … read more
Stevewh
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A confidence interval estimate for the population mean is given
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Hello Greg, I have the following for today. I was careful
Hello Greg, I have the following for today. I was careful to copy the questions in their entirety this time. These need to be done by midnight, like usual. Thanks Greg:) 1. Consider a normal populatio… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
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A 95% confidence interval of 15.9 months to 50.5 months has
A 95% confidence interval of 15.9 months to 50.5 months has been found for the mean duration of imprisonment,μ, of political prisoners of a certain country with chronic PTSD. a) Detemine the margin of… read more
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Scott
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