Use the given information to find the number of degrees of freedom, the critical values X2L and X2R and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 90% confidence; n = 22, s = 0.24 mg. df = (Type a whole number.) X2L= (Round to three decimal places as needed) X2R= (Round three decimals places as needed). The confidence interval estimate of o is ___mg

Use the given information to find the number of degrees of freedom, the critical values X2L and X2R and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 90% confidence; n = 22, s = 0.24 mg. df = (Type a whole number.) X2L= (Round to three decimal places as needed) X2R= (Round three decimals places as needed). The confidence interval estimate of o is ___mg

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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