According to an article the bottled water you are drinking may contain more bacteria and other potentially carcinogenic chemicals than are allowed by state and federal regulations. Of the more than1400 bottles studied, nearly one-third exceeded government levels. Suppose that a department wants an updated estimate of the population proportion of bottled water that violates at least onegovernment standard. Determine the sample size (number of bottles) needed to estimate this proportion to within ±0.01 with 99% confidence.The sample size needed to estimate this proportion to within ±0.01 with 99% confidence is. (Round up to the nearest whole number.)

Population size, N = more than 1400 bottlesNearly one-third exceeded government levels so p = 1/3

Answered: The sample size needed to estimate this…

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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The pulse rates of 153 randomly selected adult males vary from a low of 35 bpm to a high of 99 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 95% confidence that the sample mean is within 3 bpm of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate ơ. n = (Round up to the nearest whole number as needed.) b. Assume that o = 12.3 bpm, based on the value s = 12.3 bpm from the sample of 153 male pulse rates. n = (Round up to the nearest whole number as needed.) c. Compare the results from parts (a) and (b). Which result is likely to be better? The result from part (a) is the result from part (b). The result from is likely to be better because Enter your answer in each of the answer boxes. ? MacBook 乡 DII DD F12 000 000 80 F9 F10 F11 F6 F7 F8 esc F3 F4 F5 F1 F2 & ( ) ! @ # 2$ 2 3 4 5 7 8 9 1 { P W E R Y U [ + II
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