Andy is a restaurant owner. He believes 71% of his customers are satisfied with the food quality of his restaurant. From a random sample of 80 customers, what are the followingprobabilities? (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.)(a) What is the probability that less than 57 customers are satisfied with the food quality?(b) What is the probability that at least 57 customers are satisfied with the food quality?(c) What is the probability that the sample proportion of customers who are satisfied with the food quality is between 69% and 76%?Check

The question is about sampling dist. of prop. Given : Popl. prop. of customers are satisfied with…

Answered: Andy is a restaurant owner. He believes…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

At a certain gas station, 30% of all customers use the restroom. What is the probability that, out of the next 10 customers, (a) exactly 4 will use the restroom? (b) more than 1 will use the restroom?
Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 300 times and got 122 heads. We wish to find how significant is this evidence against equal probabilities. What is the sample proportion of heads? Round to 3 places. Heads do not make up half of the sample. Is this sample evidence that the probabilities of heads and tails are different?Take p to be the probability of getting heads in a spin of a penny. Which hypotheses do we want to test? H0: p = 0.5H0: p ≠ 0.5 H0: p = 0.5H0: p > 0.5 H0: p = 0.5H0: p < 0.5 H0: p ≠ 0.5H0: p = 0.5 Compute the z test statistic.z = Round to 2 places.
A card game requires that 44 cards are drawn from a 5252 card deck. Determine the following probabilities of a randomly drawn hand of 44 cards.Write your answers as percents rounded to 4 decimal places.Note: Aces are not considered Number Cards or Face Cards. Deck of Cards What is the probability that all 44 cards are clubs? % What is the probability that all 44 cards are number cards? % What is the probability that 22 cards are blackblack cards, and 22 cards are redred cards? % What is the probability 33 cards are face cards, and 11 cards are number cards? %
16% of individuals insured by AllState have received at least one traffic ticket. For a sample of 135 insured individuals, what is the probability that between 14 and 27 of them have received at least one ticket? (Round to four decimals).
At a company, the employees were surveyed and classified according to their level of education and whether they smoked or not. The data are shown in the table. High school graduate College graduate Smoke 09 19 Do not Smoke 17 25 If an employee is selected at random, find the following probabilities. (Round your answers to three decimal places) a. Employee smokes and is a college graduate. b. Employee smokes or is a college graduate. c. Employee smokes, given that he or she graduated from college. d. Employee is a college graduate, given that he or she smokes.
Richard has just been given a 10-question multiple-choice quiz in his psychology class. Each question has five answers, of which only one is correct. Since he has not attended class recently, he doesn’t know any of the answers. What makes up a trial? What is a success? What is a failure? What are the values of n, p, and q? Assuming Richard guesses on all 10 questions, find the indicated probabilities. What is the probability that he will answer all 10 correctly. What is the probability that he will answer all 10 incorrectly. What is the probability that he will answer at least one of the questions correctly. What is the probability that he will get at most 3 correct? What is the average number(expected value) of questions Richard will answer correctly What is the standard deviation?
Andy is a restaurant owner. He believes 70% of his customers are satisfied with the food quality of his restaurant. From a random sample of 90 customers, what are the following probabilities? (Round your answers to four decimal places, if needed.)(a) What is the probability that less than 64 customers are satisfied with the food quality?(b) What is the probability that at least 64 customers are satisfied with the food quality?(c) What is the probability that the sample proportion of customers who are satisfied with the food quality is between 68% and 75%?
In looking over customer data for your local ice cream shop, you estimate the following probabilities about what customers order: P(vanilla) = 0.4 P(sundae) = 0.4 P(vanilla and sundae) = 0.1 What is the probability that a customer order vanilla ice cream given they ordered a sundae? Estimate your answer to the first decimal place.
A pharmaceutical company claims that a drug is effective in treating 90% of people having severe migraine headaches. The drug is administered to 6 patients who have severe migraine headaches. What is the probability that exactly 5 people will have relief from their migraine? O 0.059 0.354 O 0.590 O 0.00054
A survey showed that 23% of college students read internet news on a regular basis and that 83% of college students regularly watch the news on TV. The survey also showed that 20% of college students both follow TV news regularly and read internet news regularly. (a) What is the probability that a student watches TV news regularly, given that he or she regularly reads internet news? Round your answer to the nearest hundredth. 0 (b) What is the probability that a randomly selected college student reads internet news regularly, given that he or she watches TV news regularly? Round your answer to the nearest hundredth. 0
Sixty four percent of U.S. adults drink coffee. In a random sample of 17 adults, what is the probability that the number of adults that drink coffee is: (a) Exactly 5 (b) More than 7 (c) Between 9 and 12
36% of the homes in Hilly Valley are equipped with a security system. If three (3) homes are selected at random, what is the probability that at least one of these homes will have a security system. Round your answer to four (4) decimal places Answer:

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS