The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal supplier that provides metal with a known thickness standard deviation o = .000610 mm. Assume a random sample of 55 sheets of metal resulted in an x = .2839 mm. Calculate the 90 percent confidence interval for the true mean metal thickness. (Round your answers to 4 decimal places.) The 90% confidence interval is from to
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A: Given: x~N(μ,σ)n=24x¯=30s=3α=0.02
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A: Solution: From the given information, n=16, M=58 and SS=540.
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Q: If n = 16, ¯xx¯ = 45, and s = 11, construct a confidence interval at a 99% confidence level. Assume…
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Q: If n=21, (x-bar)=46, and s=3, construct a confidence interval at a 90% confidence level. Assume the…
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Q: A sample of 20 students take Math 203 was randomly selected to evaluate the results on the Math 203…
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Q: If n = 27, x = 48, and s= 14, construct a confidence interval at a 99% confidence level. Assume the…
A: Given n=27, sample mean x̄=48, s=14
Q: If n = 14, ¯xx¯ = 44, and s = 18, construct a confidence interval at a 95% confidence level. Assume…
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Q: If n=30, (x-bar)=45, and s=13, construct a confidence interval at a 95% confidence level. Assume the…
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Q: A sample of size n = 36 is drawn from a population whose standard deviation is σ = 15.6. The sample…
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- If X=142, σ=20, and n=36,construct a 99% confidence interval estimate of the population mean, μ. (Round to two decimal places as needed.)You measure 38 dogs' weights, and find they have a mean weight of 68 ounces. Assume the population standard deviation is 9.8 ounces. Based on this, construct a 90% confidence interval for the true population mean dog weight.Give your answers as decimals, to two places ....±...... ouncesIf n = 23, ¯x = 35, and s = 3, construct a confidence interval at a 95% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places.< μ <
- A random sample of 88 observations produced a mean x=25.8 and a standard deviation s=2.5. a. Find a 95% confidence interval for μ. b. Find a 90% confidence interval for μ. c. Find a 99% confidence interval for μ. a. The 95% confidence interval is (enter your response here,enter your response here).If n=24, (x-bar)=44, and s=18, construct a confidence interval at a 98% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.Assume that a sample is used to estimate a population mean μμ. Find the 99.5% confidence interval for a sample of size 323 with a mean of 77.2 and a standard deviation of 8.3. Enter your answer accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).Find the following. Enter your answer rounded to at least two decimals. Z(α/2) for the 82% confidence intervalsolve correctly. I will rate accordingly.If n=29, (x-bar)3D46, and s=7, construct a confidence interval at a 95% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. < µ <If n = 13, x = 49, and s = 11, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places.A researcher believes that the mean of a population is 45.2. She collects data from a sample (n = 81) and finds that the sample mean is 40.4, with a standard deviation of 19. Construct a 90% confidence interval to determine whether 45.2 is a reasonable hypothesis about the value of mu.The scores of a certain population on the Wechsler Intelligence Scale for Children (WISC) are thought to be normally distributed with mean mu and standard deviation o = sample of twenty-five children from this population is taken and each is given the WISC. The mean 10. A simple random of the twenty-five scores is x = 104.32. The 95% confidence interval for mu is O 104.32 + 0.78. O 104.32 t 3.29. O 104.32 + 3.92. O 104.32 ± 19.60Recommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. FreemanMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman