If we wanted to reduce the margin of error to 3.5 per cent, how big would our sample ze have to be (again to the 95 per cent confidence level)?
Q: If we want a 95% confidence interval for proportion within 3% how large a sample do we need?
A: It is given that margin of error (E) is 0.03 and the confidence level is 0.95.
Q: If instead of 25, 80 male runners are selected for the study, what is the sampling error at 95%…
A: It is given that Sample size n = 80 Sample mean M = 53 Population SD = 5.5 Margin of error E = 0.8…
Q: If n=470 andp (p-hat) =0.69, find the margin of error at a 95% confidence level Give your answer to…
A: If the number of possible observations from the total sample size is calculated using the proportion…
Q: Find the sample size needed if a 98% confidence interval has a 'margin of error' of 4% if .. a) You…
A: From the provided information, Margin of error (E) = 0.04 Confidence level = 98% The z value at 98%…
Q: If n=590 and ˆp (p-hat) =0.81, find the margin of error at a 95% confidence level Give your answer…
A: Obtain the critical value: The confidence level is 100*(1–α)% = 95%. The critical value…
Q: If n=360 and P (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…
A: Given: n=360 , p^=0.48 we have to find margin of error at 95% confidence level
Q: If n=510 and ˆpp^ (p-hat) =0.19, find the margin of error at a 90% confidence level Give your…
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Q: What is the margin of error if we find a 95% confidence interval for the percentage of Corvettes on…
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Q: If n=520 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer to…
A: Given data,n=520p=0.47z-value at 90% confidence is Zc=1.645Margin of error(E)=?
Q: Other than the typical 90%, 95% and 99% confidence intervals, we may want to work with any other…
A: Note: This critical value calculated from standard normal distribution table at level of…
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=280 and ˆpp^ (p-hat) =0.83, find the margin of error at a 99% confidence level Give your…
A: The margin of error = The margin of error (ME) expresses the maximum expected differences between…
Q: If a confidence interval for the mean is (34≤μ≤86)(34≤μ≤86), a) What is the point estimate? b)…
A: (a) The point estimate is 60, which is obtained below: Point estimate=Upper limit+lower…
Q: Suppose you had a sample size of 41 and the population distribution was normal. Which approach would…
A: Here we use basic criteria for getting best interval estimation of mean
Q: If n=300 and ˆpp^ (p-hat) =0.52, find the margin of error at a 90% confidence level Give your…
A: Suppose p is the true proportion.
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=20, (x-bar)=44, and s=9, find the margin of error at a 98% confidence level Give your answer to…
A:
Q: If n=360 and p (p-hat) =0.29, find the margin of error at a 95% confidence level Give your answer to…
A: Given that : Sample size (n) = 360 P(hat) = 0.29 Confidence interval is 95% We use here, Margin of…
Q: If n=490 and ˆpp^ (p-hat) =0.4, find the margin of error at a 90% confidence level Give your answer…
A: Given that, n = 490 p^=0.4 90% confidence level
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: What should your sample size be if you want a confidence level of 90 percent and a margin of error…
A: We want to find the sample size (n)
Q: If n=210 and ˆpp^ (p-hat) =0.86, find the margin of error at a 90% confidence level Give your…
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Q: If a researcher uses 90% confidence level, what is the level of significance?
A: We have given that, Confidence level (C.I) = 90% = 0.90 Then, We will find the level of…
Q: If n=270 and p (p-hat) =0.93, find the margin of error at a 90% confidence level Give your answer to…
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Q: If n=200 and ˆpp^ (p-hat) =0.39, find the margin of error at a 99% confidence level
A: Find z-critical value:…
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…
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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 the margin of error for the population mean for 99% confidence level is 39, what is the standard…
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Q: If n=110 and ˆpp^ (p-hat) =0.71, find the margin of error at a 90% confidence level Give your…
A: Sample size n = 110 Sample proportion p^ = 0.71 Confidence level = 90% Formula Used: Margin of error…
Q: If n=570 and ˆpp^ (p-hat) =0.51, find the margin of error at a 95% confidence level Give your…
A: n = 570 p^=0.51 95% confidence level
Q: If n=510 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer as…
A:
Q: if you increase the sample size and confidence level at the same time. what will happen to the width…
A: The formula for the confidence interval (say) for population mean is : C.I= x ± zα/2.s2n As the…
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=190 and ˆpp^ (p-hat) =0.29, find the margin of error at a 90% confidence level Give your…
A:
Q: If n=530 and ˆpp^ (p-hat) =0.75, find the margin of error at a 90% confidence level Give your…
A: Givenn=530p^=0.75confidence level=90%
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=19, a(x-bar)=31, and s=9, find the margin of error at a 80% confidence level Give your answer…
A:
Q: If n=350 and ˆpp^ (p-hat) =0.64, find the margin of error at a 90% confidence level Give your…
A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…
Q: It is known that the population range equals 60. With a 95% confidence level, the sample size that…
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Q: If n=360 and p (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…
A: Given data,n=360p=0.48Z value at 95% CI is Zc=1.96Margin of error E=?
Q: If a confidence interval for the mean is (38≤μ≤89)(38≤μ≤89), a) What is the point estimate? b)…
A: Given, Lower bound = 38 Upper bound = 89
Q: If n=570 and ˆpp^ (p-hat) =0.89, find the margin of error at a 95% confidence levelGive your answer…
A: It is given that the value of n is 570, p hat is 0.89 and the confidence level is 0.95.Here,
Q: If n=200 and ˆpp^ (p-hat) =0.16, find the margin of error at a 95% confidence level Give your…
A: Given Information
Q: If n=480 and p^ (p-hat) =0.45, find the margin of error at a 90% confidence level Give your answer…
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Q: If n=130 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level Give your…
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Q: If n=420 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level
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Q: If n=17, (x-bar)=44, and s=8, find the margin of error at a 95% confidence level
A: The sample mean is 44 and standard deviation is 8.
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
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