4-2. 1 A calculator with a random number generator produces the following sequence of random numbers: 0.276, 0.123, 0.072, 0.324, 0.815, 0.312, 0.432, 0.283, 0.717. a) Find the sample mean. b) If the calculator produces three-digit random numbers that are uniformly distributed between 0.000 and 0.999, find the variance of the sample mean. c) How large should the sample size be in order to obtain a sample mean whose standard deviation is no greater than 0.0 1?

4-2. 1 A calculator with a random number generator produces the following sequence of random numbers: 0.276, 0.123, 0.072, 0.324, 0.815, 0.312, 0.432, 0.283, 0.717. a) Find the sample mean. b) If the calculator produces three-digit random numbers that are uniformly distributed between 0.000 and 0.999, find the variance of the sample mean. c) How large should the sample size be in order to obtain a sample mean whose standard deviation is no greater than 0.0 1?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 2E

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