A survey on the consumers buying behavior onshopping at Malls in a certain City showed that30% use credits cards to make payment. Inone of the footwear stores in this Mall, 20customers were recorded to have purchasedfootwear items.a) Using Table of Appendix B, find theprobability that at least 12 of the customersused credit cards.b) What is the probability that at least 3customers, but not more than 6, used creditcards? A Engr. Juan dela Cruz is in-charged ofensuring the quality of products and servicesproduced by their beverage company locatedin Southern Luzon. One of their products isbottled cranberry juice. He observed that theamount of juice drink in each 32 mL bottle isactually a normally distributed randomvariable, with a mean of 32.2 mL and astandard deviation of 0.3 mL.a) Find the probability that, if a customer buysone bottle will contain less than 32 mL.b) Find the probability that, if a customer buysa cartoon of four bottles, the mean of the fourwill be less than that of 32 mL.

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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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Similar questions

Using two-point method, we observe that: When the probability of stock out is 18%, the sales level is 7550 items/week. When the product availability is 8%, the sales level is 8000 items/week. a) What is the sales level if the probability of stock out is 11%? b) What is the sales level if the service level is 95%?
On the average 9 customers arrive each hour at the checkout counter at a local pharmacy store. a) What is the probability than more than 5 customers will arrive at the checkout in one hour? b) What is the probability than less than 4 customers arrive at the checkout counter in 30 minutes? Show your works and read the table.
A manager at your local VA hospital records the following table regarding patients seen on a given day with respect to blood type. Totals Blood Type Blood type Blood type A B AB O total 456 895 1,775 1,976 5,102 A) What is the probability of a patient having blood type O on this given day? B) What is the probability of a patient having blood type A or B on this given day?
Out of all the business students, 40% specialize in accounting, 15% fail the business math course, and 5% are accounting students who also failed th 4) math class. a) What is the probability that a student in accounting fails their math class? What is the probability that a student who fails their math class is studying accounting? What percentage of students are either taking accounting or passe b) c) their math course?
According to CTIA, 41% of all U.S households are wireless-only households (no landline). In a random sample of 20 households, what is the probability that- a) Exactly 5 are wireless-only b) Fewer than 3 are wireless-only c) At least 3 are wireless-only d) The number of households that are wireless-only is between 5 and 7, inclusive?
The survey by the National Center for Health Statistics further found that 49% of adults ages 25–29 had only a cell phone and no landline. We randomly select four 25–29-year-olds: a) What is the probability that all of these adults have a only a cell phone and no landline? b) What is the probability that none of these adults have only a cell phone and no landline? c) What is the probability that at least one of these adults has only a cell phone and no landline?
A Gallup poll of 1,236 adults showed that 14% believe that bad luck follows if your path is crossed by a black cat. a) Find u, o?, o, and usual values. b) Use the above information to find the probability that a total of 203 subjects believe that bad luck follows if your path is crossed by a black cat. a) Use the above information to find the probability that less than 203 subjects believe that bad luck follows if your path is crossed by a black cat.
According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of the time. Suppose 20 flights are randomly selected, and the number of on-time flights is recorded. d) Find and interpret the probability that fewer than 12 flights are on time. (e) Find and interpret the probability that at least 12 flights are on time. (f) Find and interpret the probability that between10 and 12 flights, inclusive, are on time.
A survey of 200 people, has found that 75 owned only mutual funds, 35 owned stocks, and 90 owned both. a) What is the probabality that an idividual own neither any stocks nor any mutual funds? b) What is the probability that an individual owns either a mutual fund?
According to the data released by the Las Vegas Convention and Visitors Authority, each of the millions of visitors to the Las Vegas area has a 72% probability of spending $700 or more on gaming before leaving town. Assuming that visitors to the Las Vegas area behave independently of one another, two visitors to the Las Vegas area are selected at random. a) What is the probability that both visitors spend $700 or more on gaming before leaving town? (Write your final answers without rounding them.) b) What is the probability that at least one of the visitors spends $700 or more on gaming before leaving town? c) What is the probability that neither visitor spends $700 or more on gaming before leaving town?
3. The latest data from the CDC indicates that 14% of Americans are smokers. A researcher wants to identify smokers for a survey. He randomly selects people entering a grocery store to ask if they are a smoker. a) What is the probability that he identifies the first smoker on his 5th try? b) What is the probability that he has to approach more than 8 people before finding the first smoker? c) How many people does he expect to approach before finding the first smoker?
According to the American Dental Association, 60% of all dentists use nitrous oxide in their practice. In a random sample of 600 dentists, what is the probability that at least 57% of those dentists use nitrous oxide in their practice? b) Suppose that you take a random of 120 Americans, what is the probability that 8 % or more of these 120 people have diabetes?

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