You and your friend decide to construct a 95 percent confidence intervals for a given population mean. You wind up taking a sample of 49 random observations while your friend sample is made up of 36 random observations. Which of the following is true. A.) the total length of your confidence interval estimate is wider. B.) the total length of your confidence interval estimate is narrower. C.) your interval has a greater degree of confidence. D.) your friends interval has a greater degree of confidence

You and your friend decide to construct a 95 percent confidence intervals for a given population mean. You wind up taking a sample of 49 random observations while your friend sample is made up of 36 random observations. Which of the following is true. A.) the total length of your confidence interval estimate is wider. B.) the total length of your confidence interval estimate is narrower. C.) your interval has a greater degree of confidence. D.) your friends interval has a greater degree of confidence

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

Please answer all. Thank you. You and your friend decide to construct a 95 percent confidence intervals for a given population mean. You wind up taking a sample of 49 random observations while your friend sample is made up of 36 random observations. Which of the following is true. A.) the total length of your confidence interval estimate is wider. B.) the total length of your confidence interval estimate is narrower. C.) your interval has a greater degree of confidence. D.) your friends interval has a greater degree of confidence. The width of a confidence interval for a proportion will be A.) wider for a sample of size 100 than for a sample of size 50. B.) wider when the sample proportion is 0.50 than when the sample proportion is 0.20 C.) wider for 90 percent confidence than for 95 percent D.) narrower for 99 percent confidence than for 95 percent

Definition Definition Method in statistics by which an observation’s uncertainty can be quantified. The main use of interval estimating is for describing a range that is made by transforming a point estimate by determining the range of values, or interval within which the population parameter is likely to fall. This range helps in measuring its precision.

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