An intenal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of4.2 non-work-related e-mails per hour. Assume the arrival of these e-mails is approximated by the Poisson distribution.a. What is the probability Linda Lahey, company president, received exactly 3 non-work-related e-mails between 4 P.M. and 5 P.M.yesterday? (Round your probability to 4 decimel places.)Frobabilityb. What is the probability she received 6 or more non-work-related e-mails during the same period? (Round your probabllity to 4decimal places.)Probabilityc. What is the probability she received two or less non-work-related e-mails during the period? (Round your probablility to 4 decimalplaces.)ProbabilityNext2 of 10PrevType here to search

a. Consider a random variable X which, follows Poisson distribution, indicates number of non-work…

Answered: An intenal study by the Technology…

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 proportion of individuals insured by a certain company who received at least one traffic ticket during a five-year period is 0.15. If a sample of 150 individuals insured by the company is taken, approximately what z-score would be used to find the probability that the sample proportion will be less than 0.13? O A. -0.68493 O B. -0.68966 O C. -0.68599 O D. -0.66667 O E. -0.68611
at the bank of california, past data show that 8% of all credit card holders default at some time in their lives. on recent day, this bank issued 12 credit cards to new customers. find the probability that of these 12 customers, eventually a. less than 10 will default b. between 4 to 6 will default
It has been observed that the number of traffic accidents on the L.I. expressway requiring medical assistance is a Poisson Distribution with the mean equal to 4 in one day. Find the probability that the number of such accidents is at most 6 in one day. Round answers to 4 places.
The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4.2 per week. Find the probability of the following events. A. No accidents occur in one week. Probability = B. 4 or more accidents occur in a week. Probability = C. One accident occurs today.
In deciding how many customer service representatives to hire and in planning their schedules, it is important for a firm marketing electronic typewriters to study repair times for the machines. Such a study revealed that repair times have approximately an exponential distribution with a mean of 42 minutes. Find the probability that a repair time will last less than 17 minutes.
It is known that roughly 2/3 of all human beings have a dominant right foot or eye. Is there also right-sided dominance in kissing behavior? An article reported that in a random sample of 121 kissing couples, both people in 75 of the couples tended to lean more to the right than to the left. (Use a = 0.05.) USE SALT (a) If 2/3 of all kissing couples exhibit this right-leaning behavior, what is the probability that the number in a sample of 121 who do so differs from the expected value by at least as much as what was actually observed? (Round your answer to four decimal places.) (b) Does the result of the experiment suggest that the 2/3 figure is implausible for kissing behavior? State the appropriate null and alternative hypotheses. O Ho: P = 2/3 H₂: P = 2/3 O Ho: P = 2/3 H₂: P > 2/3 O Ho: P = 2/3 H₂: p ≤ 2/3 O Ho: P = 2/3 H₂: P < 2/3 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) Z…
USA today reported that parkfield, CA is dubbed the worlds earthquake capital because it sits on top of the notorious San Andres fault. Since 1857 parkfield has had a major earthquake on the average of 1.1 times every 22 years. Explain why a poisson probability would be a good choice for r= number of earthquakes in a given time interval B. Compute the probability of at least one major earthquake in the next 22 years. Use 4 decimal places. C. Compute the probability that there will be no major earthquake in the next 22 years. Use 4 decimal places. D.Compute the probability of at least one major earthquake in the next 41years. Use 4 decimal places. E. Compute the probability of no major earthquake in the next 41 years. Use 4 decimal places.
Can I get help for question B?
Suppose annual expenditures on the UCI branded clothing and accessories per student are uniformly distributed between $60 and $70. A What is the probability that a student will spend more than $67? B. What is the probability that a student will spend less than or equal to $62? C. What is the probability that a student will spend between $64 and $68? D. What is the probability that a student will spend between $68 and $75? E Determine the expected spending on UCI branded clothing and accessories per student. F. Determine the standard deviation of the expenditures on UCI branded clothing and accessories per student.
On average, you receive 2.6 pieces of junk mail a day. Assume that the number of pieces of junk mail you receive each day follows the Poisson distribution What is the probability of receiving more than three pieces of junk mail today? O a. 0.2939 O b. 0.2639 O c. 0.2693 d. 0.2369

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