ASK YOUR TEACHERPRACTICE ANOTHThe method of tree-ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.1,222 1,180 1,243 1,187 1,268 1,316 1,275 1,317 1,275n USE SALT(a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to four decimal places.)X =A.D.S =yr(b) When finding an 90% confidence interval, what is the critical value for confidence level? (Give your answer to three decimal plāces.)t =What is the maximal margin of error when finding a 90% confidence interval for the mean of all tree-ring dates from this archaeological site? (Round your answer to the nearest whole number.)E =Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your answers to the nearest whole number.)lower limitA.D.upper limitA.D.Need Help?Watch ItRead ItMY NOTESASK YOUR TEACHERPRACTICE ANOTHER14. [-14 Points]DETAILSBBBASICSTAT8 8.2.014.MI.S.How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in temperatures from 20°F to 45°F. A random sample of prices ($) for sleeping bags in thistemperature range is given below. Assume that the population of x values has an approximately normal distribution.MacBook ProSC&6.7.8.96.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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What is the population standard deviation using the following formula
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Use the information below to answer questions 23-26. Data measured on n=3,539 participants who attended the seventh examination of the Offspring in the Framing- ham Heart Study showed that the mean Total Serum Cholesterol for men is 192.4 with sample size 1,544, whereas the mean Total Serum Cholesterol for women is 207.1 with sample size 1,766. The population standard deviation for men is 35.2 and 36.7 for women. We now wish to assess whether there is a statistically significant differ- ence in mean Total Serum Cholesterol between men and women using a 5% level of significance. 23. Write down the hypotheses to test are? (i). (ii). I. Abdul-Karim Page 3 of 4 24. What is the appropriate test statistic to use?.. 25. Write down the test statistic value.... 26. Given that the table or the critical value is -1.96, do we accept or reject the claim that the mean weight is 191 and why? .
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The method of tree-ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution. 1,285 1,187 1,285 1,285 1,285 1,306 1,320 1,285 (a) Find the sample mean year x and sample standard deviation s. (Round your answers to four decimal places.) x = A.D.s= yr (b) When finding an 85% confidence interval, what is the critical value for confidence level? (Give your answer to three decimal places.) tc = What is the maximal margin of error when finding a 85% confidence interval for the mean of all tree-ring dates from this archaeological site? (Round your answer to the nearest whole number.) E = Find a 85% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your answers to the nearest whole number.) lower limit A.D.upper limit A.D. The method of tree-ring dating gave the following years A.D. for an archaeological excavation site.…
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