Many electronic (e-)cigarettes work by vaporizing a liquid mixture of flavors and (usually) nicotine that is contained in a cartridge. When thesmoker inhales on the e-cigarette , the liquid passes through a heating element and turns to a mist. Of importance to a manufacturer andconsumer is the number of "puffs' that a cigarette can deliver before the cartridge needs to be replaced. À puff is defined as a two-secondinhale.One manufacturer notes that the number of puffs that its cartridge can deliver, Y, is a normally distributed random variable with a mean of 260puffs and a standard devlation of 15 puffs. The manufacturer will replace a customer's cartridge free of charge if the number of puffs thecustomer gets out of the cartridge is below some guaranteed number. Suppose the manufacturer wants to replace no more than 2% of itscartridges as part of the guarantee. How many puffs should the manufacturer guarantee that a cartridge can produce? Round DOWN to thenearest whole puff.Hint: You will need to first find a z-score associated with the probability in the question, and then solve the z-score formula to findthe y associated with that probability.

Mean=260 Standard deviation=15 The objective is to find out the number of puffs the manufacturer can…

Answered: Many electronic (e-)cigarettes work by…

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 number of days a barrel of water lasts varies inversely with the people who consume it. If a barrel of water lasts four days for five people, how long will it last if the consumer will be ten people? 1. As you have observed on your solution, what happen to the number of days a barrel of water could last as the number of persons increases from 5 up to 10 people? 2. Dealing with the same problem, crrate your ow questio regarding the number of days the barrel could last if there is a certain number of consumers. Also show your solution to your problem.
The pressure monitoring systems warn the driver when the tire pressure of the vehicle is 26% below the target pressure. Supposed to Target tire pressure of a certain car is 32 psi then
Justina and Frank, a couple, operate a joint account at ECOBANK Ghana Limited. Both have decided to obtain cash from an ATM (cash machine) located at University of Ghana Campus. They suspect that the rate at which they spend cash is influenced by the amount of cash they withdrew at their previous visit to the ATM. To help them understand this, they deliberately vary the amounts they withdraw. They record, for each visit to an ATM, the amount, GHS (y), withdrawn, and the amount of hours, x, until their next visit to an ATM. The table below shows the records for all their visits in hours and the corresponding amount they withdrew in each instance. Using microsoft excel, answer the questions that follow after the table. withdrawal 1 2 3 4 5 6 7 8 9 10 Y 400 100 1000 1100 1200 1500 200 900 800 130 X 56 62 195 330 94 270 48 196 214 286 Using excel, provide a summary statistics for x and y (hint: mean, median,…
A tank contains 100 liters of brine, with 50 kg total dissolved salt. Saltwater, with a concentration of 0.5 kg per liter, is allowed to run into the tank at the rate of 3 liters a minute. Brine run out of the tank at the rate of 2 liters a minute. The instantaneous concentration in the tank is kept uniform by stirring. How much salt is in the tank at the end of one hour?
2. If mPA = 36, find mPB = %3D %3D • C
Caffeine is a stimulant found in coffee, tea, soft drinks and other drinks and foods. After consumption, caffeine is absorbed into the blood stream and carried throughout the body and to the brain. In moderate amounts (~300 mg per day) it causes increased attentiveness, it reduces feelings of fatigue, and it enables most people to think clearly and concentrate for longer periods. Caffeine also increases heart rate and rate of respiration. In large quantities (>600 mg per day) its effects are magnified. People sometimes feel irritable, distracted and tense. People often use caffeine to increase mental alertness. Some people are more sensitive than others to the effects of caffeine. People who consume caffeine regularly may build up a tolerance to its effects. Further, since caffeine is mildly addictive, people who regularly consume caffeine may experience some withdrawal effects if they stop consumption. The Study In this study, three people each consumed varying levels of…
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On March 11, 2011, Japan suffered an earthquake and tsunami that caused a disastrous accident at the Fukushima nuclear power plant. Among many other results, amounts of iodine-131 that were 27 times the government limit were found in a sample of spinach 60 miles away.† Now, 27 times the government limit of iodine-131 is 54 thousand becquerels per kilogram.† The following table shows the amount I, in thousands of becquerels per kilogram, of iodine-131 that would remain after t days. t = time, in days I = amount ofiodine-131 0 54.00 1 49.52 2 45.41 3 41.64 4 38.18 (a) Show that the data are exponential. (In this part and the next, round to three decimal places.) Because t increases by 1 each time, to show that the data are exponential, we must show that the successive ratios (rounded to three decimal places) are the same. Because all of the ratios are equal to , the data are exponential. (b) Find an exponential model I that shows the amount of iodine-131…
1. Mr. Pein has an aquarium that has a volume of 2000 mL and contains freshwater fish. One day, Mr. Pein's son accidentally spilled 1 kilogram of salt into the aquarium. The fish will die if they are in water with a salt concentration of more than 10-3 grams/mL for more than 30 minutes. So that the fish in the aquarium do not die, Mr. Pein must immediately reduce the salt concentration in the aquarium to 10-3 grams/mL by flowing fresh water at a constant rate through the aquarium, and removing the water from the aquarium at the same rate. What is the minimum water speed so that the fish don't die? In 500 А. 60000 mL/minute 2000 В. 30 In 500 mL/min 1996 С. mL/minute 30 In 500 D. 6000 mL/minute 200 Е. 30 In 500 mL/min
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8.3 = 14.5 + 5x Ox=-11.2 Ox= -1.24 O x = 1.24 O x = 11.2 %3D

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