Answered: Random Number Table 89087 79366 26683…

Random Number Table 89087 79366 26683 07210 77351 53984 82995 92618 35678 25292 15237 17020 01530 87421 38452 93923 56420 93703 19561 49447

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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Suppose that a local band is looking to increase its social media presence. The band's manager hopes to attract new fans by having current fans share the band's updates and videos on Facebook, and he wants to estimate the average number of Facebook friends that fans of the band have. To do this, he selects a random sample of n = 10 fans from the band's Facebook page and records how many friends they have. The rounded friend counts for these 10 fans are represented in the stem and leaf plot, where the stems represents the hundreds and the leaves represent the tens. 1 5 2 3 4 5 6 4 7 9 σ со соди 4 3 3 9 5 8 6 Leaf Unit = 10 Using his raw data, he calculates a sample mean of x = 405.0 and a sample standard deviation of s = 189.3. Additionally, suppose that Facebook has reported that the standard deviation for the number of Facebook friends for all users is 203.4. The band's manager plans to use this information to construct a 95% z-confidence interval for the mean friend count for fans of…
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