8.Research has revealed that forty percent of Internet company employees have stock options in theircompanies. Consider a random sample of 12 employees from an Internet company.(a) What is the probability that at least 7 employees have stock options in the company?(b) What is the mean number of Internet company employees who have stock options in theircompanies, in a sample of 12 employees?(c) What is the probability that at most 7 employees will not have stock in the company?{Hint: Note that "success" here has changed in problem (c.)}

Answered: Image /qna-images/answer/3298e976-4229-4f16-bd60-6b447611f807.jpg

Answered: 8. Research has revealed that forty…

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

< Suppose Nate wins 27% of all staring contests. (a) What is the probability that Nate wins two staring contests in a row? (b) What is the probability that Nate wins four staring contests in a row? (c) When events are independent, their complements are independent as well. Use this result to determine the probability that Nate wins four staring contests in a row, but does not win five in a row. (a) The probability that Nate wins two staring contests in a row is 0.0729. (Round to four decimal places as needed.) ...
3. There are 10 distinct pairs of socks in my drawer, all mixed up. What is the probability that I can form a complete pair' by picking four socks at random? Find the distribution function of the number of complete pairs.
study of 441,193 cell phone users, it was found that 76 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000209 probability of a person developing cancer of prain or nervous system. We therefore expect about 93 cases of such cancer in a group of 441,193 people. Estimate the probability of 76 or fewer cases of such cancer in a group of 441,193 people. What do these Its suggest about media reports that cell phones cause cancer of the brain or nervous system? P(xs76)= (Round to four decimal places as needed.) What does the result from part (a) suggest about the media reports? O A. The media reports appear to be correct because one would expect that less than 93 cell phone users would develop cancer and the study offers some evidence to support this. DB. The media reports appear to be incorrect because one would expect that more than 93 cell phone users would develop cancer. In fact, the study may offer some evidence to suggest that…
Blood types can be classified as either Rh* or Rh". According to the Information Please Almanac, 95% of the Chinese population has Rh* blood. 15. What is the probability that five randomly selected Chinese people have Rh* blood? 16. What is the probability that at least one of the five randomly selected Chinese people has Rh blood?
A home security system is designed to have a 99% reliability rate. Suppose that nine home equipped with this system experience an attempted burglary. Find the probability that at least two of the alarms are triggered. Group of answer choices 1- (.999 ) - 9* (.998 )* (.01) 1- (.019 ) - 9* (.018 )* (.99) 1- (.999 ) 1- (.019 )
6. A survey by Altgeld Travel Magazine found that 85% of airline passengers prefer to sleep during their flights. Ifwe randomly select 9 passengers, what is the probability that…. (a) Exactly 8 passengers prefer to sleep during their flights? (b) 8 or more passengers prefer to sleep during their flights?
An investigator is interested in examining if drinking wells are contaminated with a toxin, the toxin is found in 29% of the wells within the region. 7 drinking wells were examined, they have selected the 7 wells so they are far enough apart from one another so the results of one drinking well provides no information as to the status of any other well in the study. a) What is the probability that exactly 3 of the wells in the study are contaminated. b) What is the mean and standard deviation of the number of drinking wells in a sample of this size that are contaminated.
6) The expected number of typographical errors on a page of a certain magazine is .2. What is the probability that the next page you read contains (a) 0 and (b) 2 or more typographical errors? Explain your reasoning!
2. Even at conferences full of physicians, female doctors noticed that they were introduced as "Doctor" about 49% of the time.' Visualize a female physician networking at such an event. (a) What is the probability that she will be introduced as “Doctor" 3 times before not being addressed by the title on the fourth introduction? (b) What is the probability that she will be introduced as "Doctor“ at most 3 times before not being addressed by the title?
It is known that the probability of service personnel working in the F&B department of a five-star hotel business is 0.06. 5 services performed by these service personnel were observed. What is the probability of making at most 2 faulty services? *
3. A study conducted at a large hospital found that 27.8 percent of all patients admitted to the hospital's ICU remained in the ICU for less than 24 hours. (A) If 8 patients are selected at random from the ICU patients at the hospital, what is the probability that 2 or fewer of them remained in the ICU for less than 24 hours? (B) Suppose that 20 patients are selected at random from the ICU patients at the hospital. Calculate the mean and standard deviation of the number of these patients who remained in the ICU for less than 24 hours. (C) Another result of the study was that for elective (non-emergency) admissions to the hospital's ICU, the length of the stay in the ICU had a mean of 18.9 hours and a standard deviation of 3.9 hours. Assuming that the length of stay in the ICU for elective admissions is normally distributed, what proportion of elective admissions remained in the ICU for less than 24 hours?
During the first 28 days of the new program, the manager determined that 4 % of customers were not satisfied with the results of their call. If the manager checks a random sample of 33 calls, what is the probability that 7 or fewer customers will be dissatisfied with the results of their call?

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