What is the size of the smallest sample required to estimate an unknown proportion to within a maximum error of 0.06 with at least 95% ot U.0 worl hu confidence?
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: Given, Sample size, n = 16 Sample mean, -x = 58.9 Standard deviation, s = 7.3 Confidence level = 90%…
Q: Assume that a sample is used to estimate a population mean . Find the margin of error M.E. that…
A: To Find: Margin of error. (ME)
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Q: How large the sample should be taken to estimate the average medical expense of the HHs in the city…
A: Solution: Given information: Margin of Error = E = 50 Population standard deviation = σ= 120 Assumed…
Q: Assume that a sample is used to estimate a population mean μ . Find the 95% confidence interval for…
A:
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: From the provided information, Sample size (n) = 18 Sample mean (x̅) = 33.6 Sample standard…
Q: Assume that the helium porosity level (measured in percentage) of coal samples taken from any…
A: Population standard deviation =0.75 Width of C.I =0.40
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: Givensample size(n)=14Mean(x)=40.5standard deviation(s)=19.2confidence level=90%
Q: Assume that a sample is used to estimate a population proportion μμ. Find the margin of error M.E.…
A: We have to find Margin of error (ME) . Since population standard deviation () not known, we have to…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: Given information Sample size(n) = 14 Sample mean = 65.4 Sample standard deviation = 6.5…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A:
Q: Assume that a sample is used to estimate a population mean u. Find the margin of error M.E. that…
A:
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A:
Q: Assume that a sample is used to estimate a population mean u. Find the margin of error M.E. that…
A: We have to find the margin of error M.E. that corresponds to a sample of size 23 with a mean of 35.2…
Q: How large a sample is required if we wish to be 99% confident that the error in estimating this…
A: It is given that Standard deviation, σ = 0.44 Margin of error, E = 0.017 Confidence level =…
Q: If 90% of the athletes who test positive for steroids in fact use them, and 10% of all athletes use…
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Q: Assume that a sample is used to estimate a population mean u. Find the margin of error M.E. that…
A: The given information is:
Q: During a Formula 1 test. 25% of the cars that participated in the test experienced a tire blowout.…
A: Correct answer is (C) 0.1484
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: The summary of statistics is, The degree of freedom is, df =n-1 = 20-1 = 19 Critical value:…
Q: Assume that a sample is used to estimate a population mean μ. Find the 95% confidence interval for…
A: According to the provided information, μ=49.3σ=9.5n=9α=0.05zα/2=1.96 (From standard normal…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: mean = 36.1 s = 15.4 n = 12 t-critical value at df =11 and alpha = 0.2 is 1.363
Q: it is known that the population standard deviation of weight among females is 30. assuming that we…
A: The standard error of the average weight among women of a sample of this size is obtained below:…
Q: researcher estimates the 95% CI for a sample with a mean of M = 3.26 and a standard error
A: The formula for computing upper confidence limit is,
Q: A high-tech company wants to estimate the average number of years of college education its employees…
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Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A:
Q: Find the minimum sample size required to estimate the mean pulse rate of adult females in order to…
A: confidence level=90%Margin of error(E)=4standard deviation()=8.5
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: Sample size (n) = 15 Mean (x) = 43.3 Standard deviation (s) = 5.8 Confidence level = 80% The z…
Q: Assume that a sample is used to estimate a population proportion μμ. Find the margin of error M.E.…
A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A:
Q: At 90% confidence, how large a sample should be taken to obtain a margin of error of 0.017 for the…
A: The question is about sample size estimation.Given :Confidence level ( C ) = 0.90Margin of error ( E…
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A: Given: Standard deviation = 25 milliseconds Margin of error ( E ) = 4 Confidence level = 90 % To…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: It is given that the sample mean is 37.5 and the standard deviation is 7.9.
Q: Assume that a sample is used to estimate a population proportion μμ. Find the margin of error M.E.…
A: From the question, Given that, a sample of size 46 has a mean of 35.9 and a standard deviation of…
Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…
A: Given that: Sample size, n=21 Sample mean, x¯=67.9 Sample standard deviation, s=5.3 Confidence level…
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- Assume that a sample is used to estimate a population mean μ. Find the margin of error M.E. that corresponds to a sample of size 14 with a mean of 76.2 and a standard deviation of 14.8 at a confidence level of 80%. Report ME accurate to one decimal place because the sample statistics are presented with this accuracy. M.E. - Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.What is the size of the smallest sample required to estimate an unknown proportion to within a maximum error of 0.06 with at least 95% confidence? wot uod 85Assume that a sample is used to estimate a population proportion μμ. Find the margin of error M.E. that corresponds to a sample of size 293 with a mean of 31.3 and a standard deviation of 15.1 at a confidence level of 98%.Report ME accurate to one decimal place because the sample statistics are presented with this accuracy.M.E. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.
- Suppose the scale readings are normally distributed with an unknown mean and standard deviation of =0.01 grams. How large should n be so that a 95% confidence interval for μ has a margin error of 0.0001 or less?Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that corresponds to a sample of size 17 with a mean of 44.6 and a standard deviation of 10.1 at a confidence level of 99.8%.Report ME accurate to one decimal place because the sample statistics are presented with this accuracy.M.E. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.Assume that a sample is used to estimate a population mean μ μ . Find the margin of error M.E. that corresponds to a sample of size 11 with a mean of 35.8 and a standard deviation of 12.6 at a confidence level of 99.5%. Report the margin of error accurate to one decimal place because the sample statistics are presented with this accuracy. M.E. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 2 decimal places.
- Assume that a sample is used to estimate a population mean μμ. Find the margin of error EE that corresponds to a sample of size 17 with a mean of 39.4 and a standard deviation of 5.7 at a confidence level of 98%.Report EE accurate to one decimal place because the sample statistics are presented with this accuracy.EE = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.Assume that a sample is used to estimate a population proportion μμ. Find the margin of error M.E. that corresponds to a sample of size 366 with a mean of 63.2 and a standard deviation of 9.8 at a confidence level of 90%.Report ME accurate to one decimal place because the sample statistics are presented with this accuracy.M.E. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.How large a sample must be taken to be 99% confident that the estimate of the average time of long-distance calls is within 3 minutes of the true average time of long-distance calls of all customers? A previous study indicated that the standard deviation for long-distance calls is 20 minutes.
