Find the sample size needed if a 98% confidence interval has a 'margin of error' of 4% if .. a) You feel safe using an estimate for p of .13 b) You are going to play it as safe as possible and use p of .50

Q: If n=380 and p^(p-hat) =0.12, find the margin of error at a 95% confidence level Give your answer…

A: Given data: n = 380  p^(p-hat) =0.12, To find : The margin of error at a 95% confidence level

Q: Suppose that you plan to apply the one-mean z-interval procedure to obtain a 90% confidence interval…

A: a. Margin of error: Margin of error is a range of values that lie above and below the sample…

Q: If n=17, ¯xx¯(x-bar)=41, and s=7, find the margin of error at a 80% confidence level Give your…

A: Sample mean = 41 Standard deviation = 7 Sample size = 17 80% confidence level

Q: Use the given confidence interval to find the margin of error and the sample proportion. (0.704,…

A: The confidence interval for population proportion is given by (0.704, 0.732)

Q: If n=550 and ˆpp^ (p-hat) =0.25, find the margin of error at a 99% confidence level Give your…

A: The margin of error = The margin of error (ME) expresses to the maximum expected differences between…

Q: If n=19, ¯xx¯(x-bar)=31, and s=9, find the margin of error at a 90% confidence level Give your…

A:

Q: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level E=

A: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level

Q: If n=20, ¯xx¯(x-bar)=44, and s=9, find the margin of error at a 98% confidence level Give your…

A: In the question, n=20 and s=9 are given and the margin of error at a 98% confidence level is asked…

Q: If n=26, ¯xx¯(x-bar)=43, and s=9, find the margin of error at a 98% confidence level Give your…

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Q: If n=12, ¯xx¯(x-bar)=41, and s=10, find the margin of error at a 80% confidence level Give your…

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Q: If n=22, ¯xx¯(x-bar)=39, and s=6, find the margin of error at a 98% confidence level Give your…

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Q: If n=10, 7(x-bar)=49, and s-2, find the margin of error at a 80% confidence level Give your answer…

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Q: If n=240 and ˆpp^ (p-hat) =0.91, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=11, ¯xx¯(x-bar)=32, and s=9, find the margin of error at a 98% confidence level

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Q: If n=120 and p^ (p-hat) =0.84, find the margin of error at a 95% confidence level Give your answer…

A: Find z-critical value:…

Q: Use the given confidence interval to find the margin of error and the sample mean . (12.9, 20.1)

A: See the handwritten solution

Q: Suppose that you plan to apply the one-mean z-interval procedure to obtain a 90% confidence interval…

A: It is given that the population standard deviation is 12 and the sample size is 9.

Q: If you obtained one thousand 95% confidence intervals for a population mean, µ, roughly how m the…

A: f you obtained one thousand 95% confidence intervals for a population mean, roughly it contains…

Q: If n=19, (x-bar)=39, and s=8, find the margin of error at a 80% confidence level Give your answer…

A: We have given that,  Sample size (n) = 19 and sample mean (X-bar) = 39 and sample standard deviation…

Q: If n=12, ¯xx¯(x-bar)=44, and s=5, find the margin of error at a 99% confidence level

A: Given: margin of error for a 99% confidence interval. n=12 x¯(x-bar)=44 s=5

Q: If n=120 and p (p-hat) =0.31, find the margin of error at a 99% confidence level Give your answer to…

A: Sample size, n = 120 p^ = 0.31 99% confidence level

Q: Assume that a sample is being used to estimate a population mean μμ. If n = 29, x¯ = 46, and s =…

A: From the provided information, Sample size (n) = 29 Sample mean (x̅) = 46 Sample standard deviation…

Q: In a previous study, it was found that p̂= .73 for a particular sample. Suppose we would like to…

A: Given information Error = 0.01 Confidence level = 0.98

Q: If n=340 and p (p-hat) =0.23, find the margin of error at a 95% confidence level Give your answer to…

A: Given,n=340p^=0.23α=1-0.95=0.05α2=0.025Z0.025=1.96

Q: If n=530 and ˆpp^ (p-hat) =0.51, find the margin of error at a 90% confidence level Give your…

A:

Q: (b) Estimate the sample size needed if no estimate of p is available. A sample of 504 adults is…

A: Given that m.e=0.03,alpha=0.002 ( 2 ) n=?

Q: If n=28, ¯xx¯(x-bar)=35, and s=8, find the margin of error at a 95% confidence level Give your…

A: Given values, s = 8 n = 28 Confidence level = 95% z score at 95% confidence level = 1.96

Q: If n=270 and ˆpp^ (p-hat) =0.59, find the margin of error at a 99% confidence level Give your…

A: Given  n=270, pcap=0.59, alpha=0.01 Zcritical=2.578 at alpha=0.01 We want to find margin of error

Q: If n=490 and ˆpp^ (p-hat) =0.46, find the margin of error at a 99% confidence level.Give your answer…

A:

Q: If n=15, ¯xx¯(x-bar)=37, and s=9, find the margin of error at a 80% confidence level Give your…

A: Given that  n = 15 , x- = 37 , s = 9

Q: If n=11, ¯xx¯(x-bar)=35, and s=8, find the margin of error at a 90% confidence level. Answer to two…

A: Margin of error = t critical * Standard error where    t critical is the value of t for 90%, two…

Q: If n=25, 7(x-bar)=48, and s=4, find the margin of error at a 80% confidence level

A: The sample size is 25, sample mean is 48, and sample standard deviation is 4. The degrees of freedom…

Q: If n=170 and ˆpp^ (p-hat) =0.23, find the margin of error at a 99% confidence level Give your…

A: Find z-critical value:…

Q: If n=490 and ˆpp^ (p-hat) =0.54, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=12, ¯xx¯(x-bar)=48, and s=6, find the margin of error at a 98% confidence level

A: From the provided information, Sample size (n) = 12 Sample mean (x̄) = 48 Standard deviation (s) = 6…

Q: a. What should the sample size be for a 98% confidence interval for p to have a margin of error of…

A: Given: σ=17.40

Q: If n=14, ¯xx¯(x-bar)=33, and s=8, find the margin of error at a 80% confidence level Give your…

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Q: 14. Find the sample size that will produce the maximum error of a 99% confidence interval for a…

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Q: Find the margin of error for the given 1. o = 3.5 n = 45 a. 90% confidence level

A: To find the margin of error for the given confidence levels: Margin of error indicates how many…

Q: If n=32, ¯xx¯(x-bar)=30, and s=5, find the margin of error at a 95% confidence level Give your…

A:

Q: If n=15, (x-bar)=37, and s=8, find the margin of error at a 80% confidence level Give your answer to…

A:

Q: 4) Consider a confidence level of 90%. If n=68 and ?̂ = 0.42 Calculate the margin of error. 5)…

A: According to our guidelines we can answer only first question and rest can be reposted.

Q: If n=480 and p^ (p-hat) =0.45, find the margin of error at a 90% confidence level Give your answer…

A:

Q: If n=130 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level Give your…

A:

Q: If n=14, ¯xx¯(x-bar)=46, and s=6, find the margin of error at a 90% confidence level Give your…

A: We have given that,  Sample mean ( x̄) = 46, standard deviation   (s)=6 , sample size (n) = 14 and…

Q: If n=10, ¯xx¯(x-bar)=44, and s=8, find the margin of error at a 80% confidence level

A:

Q: If n=12, x¯(x-bar)=47, and s=3, find the margin of error at a 80% confidence level

A: Margin of error (E): The margin of error for sample mean is given by,

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: If n=14, ¯xx¯(x-bar)=47, and s=5, find the margin of error at a 80% confidence level Give your…

A: The degrees of freedom is, df=n-1=14-1=13 The degrees of freedom is 13. Computation of critical…

Q: If n=350 and p (p-hat) =0.28, find the margin of error at a 99% confidence level Give your answer to…

A: n = 350p^ = 0.2899% confidence level

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.