54. Suppose the sediment density (g/cm) of a randomly selectedspecimen from a certain region is normally distributed withmean 2.65 and standard deviation 85 (suggested in"Modeling Sediment and Water Column Interactions forHydrophobic Pollutants," Water Research, 1984: 1169-1174).a. If a random sample of 25 specimens is selected, what isthe probability that the sample average sediment densityis at most 3.00? Between 2.65 and 3.00?b. How large a sample size would be required to ensure thatthe first probability in part (a) is at least .99?

The sediment density (g/cm) of a randomly selected specimen from a certain region is normally…

Answered: specimen from a certain region is nor…

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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a soft drink as an average of 12.25 oz suppose x is normally distrubuted with a standard deviation of 0.16 oz if 16 cans are randomly selected and the volume is checked whats the probability that the average of the sample is more than 12.5 oz
For each of the following hypotheses in Questions 6-8, (i) provide the p-value (or its bounds) and (ii) draw a basic conclusion (REJECT or DO NOT REJECT only) with respect to Ho with 99% confidence. Handwritten notes are not necessary for these questions.
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specimen from a certain region is nor mean 2.65 and standard deviatio: "Modeling Sediment and Water Co Hydrophobic Pollutants," Water Resear a. If a random sample of 25 specime the probability that the sample ave