Homework Answers
Ans:
Given that
n=100 and p=0.10
a)
Poisson approximation:
mean=np=100*0.10=10
P(at least 8)=P(x>=8)=1-P(x<=7)
=1-Poisson(7,10,true)=0.7798
b)Using Binomial model:
P(x>=8)=1-P(x<=7)
=1-binomdist(7,100,0.1,true)
=0.7939
Add Answer to:
(6) If there are on average 10% left-handers in a population estimate the chances of having...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a given student is a Poisson random variable; left-handers (L) report injuries at a handers (R) at a rate of 0.15 per year, 15% of the students are left-handed. rate of 0.25 per year, and right- (a) What is the probability that a randomly selected student is injured exactly twice this...
3. The Jordan Sports Equipment Company finds that 10% of the general population is left-handed. Use...
3. The Jordan Sports Equipment Company finds that 10% of the general population is left-handed. Use the binomial table or formula (bottom) as appropriate in answering the following questions. (a) If 20 people are randomly selected, find the probability that exactly 3 of them are left-handed. (b) If 8 people are randomly selected, find the probability that at least one of them is left-handed.
(please, show work) 6) In a high risk group, the chances of a person having suffered...
(please, show work)
6) In a high risk group, the chances of a person having suffered a heart attack are 53.24%. If nine people are chosen, find the following probabilities: a) P(X-3) b) P(X> 7) c) P(X < 6) d) P(at least 5) e) P(no more than 2)
1 2 Suppose that 10% of the population of the U.S. is left-handed. If a random...
1 2 Suppose that 10% of the population of the U.S. is left-handed. If a random sample of 155 people from the U.S. is chosen, approximate the probability that at least 16 are left-handed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps. (If necessary, consult a list of formulas) Х $ 2 e
6.-. What size should a sample be to estimate the average of a population that follows...
6.-. What size should a sample be to estimate the average of a population that follows a normal distribution in each of the following cases? a.ME = 5; ? = 40; ? = 0.01 b.ME = 10; ? = 40; ? = 0.01 c. Compare and comment the answers to sections (a) and (b).
please round at least three decimals Suppose that 10% of the population of the U.S. is...
please round at least three decimals
Suppose that 10% of the population of the U.S. is left-handed. If a random sample of 155 people from the U.S. is chosen, approximate the probability that al least 16 are left-handed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps. (If necessary, consult a list of formulas) 0 X ?
Question 6 According to a recent survey, 17% of the population is left handed. If you...
Question 6 According to a recent survey, 17% of the population is left handed. If you randomly select 6 people what is the probability that at least one of them is left handed? Round your answer to three decimal places. Question 71 pts If P ( A ) = 0.45 then for any event B we have P ( A ∩ B ) ≤ 0.45 Group of answer choices True False
There are 180 primary schools in a country area having an average of 30 or more...
There are 180 primary schools in a country area having an average of 30 or more people under the age of 21 per class. A sample of 30 schools drawn using systematic sampling with an interval of k= 6. Serial number 1 2 3 4 5 6 7 8 9 10 No. of students 60 200 45 50 40 79 35 41 30 120 Serial number 11 12 13 14 15 16 17 18 19 20 No. of students 300...
Please show the process 6. In developing an interval estimate for a population mean, the population...
Please show the process
6. In developing an interval estimate for a population mean, the population standard deviation σ was assumed to be 10. The interval estimate was 50.92 2.14. Had ơ equaled 20, the interval estimate would be a. 60.92 t 2.14 b. 50.92 12.14 c. 101.84 4.28 d. 50.92t 4.28 7. If the confidence level is reduced, the confidence interval a. widens. b. remains the same. C. narrows. d. disappears. 8. The zal value for a 95% confidence...
I need to know the code to do this question in R thanks 10. (8 marks) (using dataset: "meap93", in R: data(meap9...
I need to know the code to do
this question in R
thanks
10. (8 marks) (using dataset: "meap93", in R: data(meap93, package-'wooldridge)) We want to explore the relationship between the math pass rate (scil/) and average teachers' compensation (salary + benefits) in the school (totcomp) In the population model: scill,-β0 + βι log(totcompi-u, prove that β/ 10 is the percentage point change in scill given a 10% increase in totcom. ii Use the data in MEAP93 to estimate the...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a given student is a Poisson random variable; left-handers (L) report injuries at a handers (R) at a rate of 0.15 per year, 15% of the students are left-handed. rate of 0.25 per year, and right- (a) What is the probability that a randomly selected student is injured exactly twice this...
3. The Jordan Sports Equipment Company finds that 10% of the general population is left-handed. Use the binomial table or formula (bottom) as appropriate in answering the following questions. (a) If 20 people are randomly selected, find the probability that exactly 3 of them are left-handed. (b) If 8 people are randomly selected, find the probability that at least one of them is left-handed.
(please, show work)
6) In a high risk group, the chances of a person having suffered a heart attack are 53.24%. If nine people are chosen, find the following probabilities: a) P(X-3) b) P(X> 7) c) P(X < 6) d) P(at least 5) e) P(no more than 2)
1 2 Suppose that 10% of the population of the U.S. is left-handed. If a random sample of 155 people from the U.S. is chosen, approximate the probability that at least 16 are left-handed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps. (If necessary, consult a list of formulas) Х $ 2 e
please round at least three decimals
Suppose that 10% of the population of the U.S. is left-handed. If a random sample of 155 people from the U.S. is chosen, approximate the probability that al least 16 are left-handed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps. (If necessary, consult a list of formulas) 0 X ?
Please show the process
6. In developing an interval estimate for a population mean, the population standard deviation σ was assumed to be 10. The interval estimate was 50.92 2.14. Had ơ equaled 20, the interval estimate would be a. 60.92 t 2.14 b. 50.92 12.14 c. 101.84 4.28 d. 50.92t 4.28 7. If the confidence level is reduced, the confidence interval a. widens. b. remains the same. C. narrows. d. disappears. 8. The zal value for a 95% confidence...
I need to know the code to do
this question in R
thanks
10. (8 marks) (using dataset: "meap93", in R: data(meap93, package-'wooldridge)) We want to explore the relationship between the math pass rate (scil/) and average teachers' compensation (salary + benefits) in the school (totcomp) In the population model: scill,-β0 + βι log(totcompi-u, prove that β/ 10 is the percentage point change in scill given a 10% increase in totcom. ii Use the data in MEAP93 to estimate the...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago