Use the given information to find the number ofdegrees of freedom, the critical values chi SubscriptUpper L Superscript 2 and chi Subscript Upper RSuperscript 2, and the confidence interval estimate ofsigma. It is reasonable to assume that a simple randomsample has been selected from a population with anormal distribution. Nicotine in menthol cigarettes90% confidence; nequals28, sequals0.29 mg.LOADING... Click the icon to view the table of Chi -Square critical values. Question content area bottomPart 1 dfequals 27 (Type a whole number.) Part 2 chiSubscript Upper L Superscript 2equals18.114 (Round to three decimal places as needed.) Part 3 chiSubscript Upper R Superscript 2equals36.741 (Round to three decimal places as needed.) Part 4 Theconfidence interval estimate of sigma isenter yourresponse here mgless thansigmaless thanenter yourresponse here mg. (Round to two decimal places asneeded.)

Let be the population standard deviation.Given that,Confidence level Sample standard deviation

Answered: Round to three decimal places as…

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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For the table below. Determine the regression coefficient (with confidence interval), and the adjustment line:
Use the sample information = 37, 0=5, n=15 to calculate the following confidence intervals for u assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.) The 90% confidence interval is from to (b) 95 percent confidence. (Round your answers to 4 decimal places.) The 95% confidence interval is from to (c) 99 percent confidence. (Round your answers to 4 decimal places.) es The 99% confidence interval is from to (d) Describe how the intervals change as you increase the confidence level. O The interval gets narrower as the confidence level increases. O The interval gets wider as the confidence level decreases. O The interval gets wider as the confidence level increases. O The interval stays the same as the confidence level increases. 4 of 10 NEht > < Prev ere to search
Use SALT to find the multiplier t* for calculating a confidence interval for a single population mean in each of the following situations. (Round your answers to two decimal places.) (a) n = 27; confidence level = 0.98 (b) n = 6; confidence level = 0.90 (c) n = 6; confidence level = 0.99
# 34- In a test of the effectiveness of garlic for lowering cholesterol, 44 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before−after) in their levels of LDL cholesterol (in mg/dL) have a mean of 4.9 and a standard deviation of 17.5. Construct a 95% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol? What is the confidence interval estimate of the population mean μ? _____mg/dL<μ<_____mg/dL (Round to two decimal places as needed.) What does the confidence interval suggest about the effectiveness of the treatment? A. The confidence interval limits contain 0, suggesting that the garlic treatment did not affect the LDL cholesterol levels. B. The confidence interval limits contain 0, suggesting that the garlic treatment…
Use the sample information I= 37, 0 = 5, n= 15 to calculate the following confidence intervals for u assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.) The 90% confidence interval is from to (b) 95 percent confidence. (Round your answers to 4 decimal places.) The 95% confidence interval is from to (c) 99 percent confidence. (Round your answers to 4 decimal places.) The 99% confidence interval is from to (d) Describe how the intervals change as you increase the confidence level. O The interval gets narrower as the confidence level increases. O The interval gets wider as the confidence level decreases. O The interval gets wider as the confidence level increases. O The interval stays the same as the confidence level increases. |出 NGMt > < Prev 4 of 10 6:5 2/28 ere to search
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Round to three decimal places as needed.) Part 4 The confidence interval estimate of sigma is response here mgless thansigmaless than enter your enter your response here mg. (Round to two decimal places as needed.)