A procurement specialist has purchased 23 resistors from vendor 1 and 31 resistors from vendor 2. Let X₁,1, X1,2,...,X23 representthe vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 110 ohms andstandard deviation 1.7 ohms. Similarly, let X2,1, X2,2,...,X31 represent the vendor 2 observed resistances, which are assumed to benormally and independently distributed with mean 117 ohms and standard deviation of 2.2 ohms. What is the sampling distribution ofX₁ - X₂ ? What is the standard error of X₁ – X₂ ?The sampling distribution of X₁ X₂ is N(μX₁-X₂(Round the second answer to four decimal places.)The standard error of X₁ - X₂ is i= i₂0² X₁-X₂= i(Round your answer to three decimal places.)Statistical Tables and Charts

From the provided information, μ1=110σ1=1.7n1=23μ2=117σ1=2.2n1=31

Answered: A procurement specialist has purchased…

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

4) Suppose an x distribution with u = 12 and standard deviation 6. Consider two corresponding x distributions, the first based on sample size n = 36 and the second with sample size n = 64. a) What is the value of the mean and standard deviation of the two x distributions? First: Hx = Ox= - Ox=- Second: ux =
3.You are a high school student council member tasked with analyzing how much time students in your school spend on various extracurricular activities. The following data represents the number of hours 16 different students spent on extracurricular activities last month: 13, 18, 6, 20, 25, 11, 9, 18, 3, 30, 16, 9, 8, 23, 26, 17 a) Find the first quartile Q1' b) Find the second quartile Q2 c) Find the third quartile Q3 | d) Find the 80th percentile | e) Find the lower and upper outlier boundary and determine if there are any outliers.
Suppose 72% of a population possesses a given characteristic, and 50% of a random sample of size n=175 drawn from this population possesses the same characteristic. Determine the sampling error of p^.
A load of 200 desk lamps has just arrived at the warehouse of Lighting, Inc. Random samples of n = 5 lamps are checked. If more than one lamp is defective, the whole lot is rejected. Set up the OC curve for this plan and develop the AOQ curve.
A major credit card company is investigating whether the distribution of the number of credit cards used by its customers has changed from last year to this year. Customers are classified as using 1 card, 2 cards, or more than 2 cards. The company conducts a chi-square goodness-of-fit test to investigate whether there is a change in the distribution of number of cards used from last year to this year. The value of the chi-square test statistic was χ2=7.82χ2=7.82 with a corresponding pp-value of 0.02. Assuming the conditions for inference were met, which of the following is the correct interpretation of this pp-value?
14) An alarm company reports that the number of alarms sent to their monitoring center from customers owning their system follow a Poisson distribution with λ = 4.7 alarms per year. Identify the mean and standard deviation for this distribution. A) mean = 4.7, standard Deviation = 4.7 B) mean = 2.17, standard Deviation = 2.17 C) mean = 2.17, standard Deviation = 4.7 D) mean = 4.7, standard Deviation = 2.17
a) The number of raisins in a randomly chosen Jamaican spice bun can be modeled as arandom variable having a Poisson distribution with mean 5.2. Find the probability that arandomly chosen Jamaican spice bun has exactly10 raisins. Ensure that you have defined the variable of interest and A bank official finds that the length of time customers wait to be served by teller areapproximately normally distributed with a mean of 5 minutes and a standard deviation of 3 minutes. What probability that a customer has to wait for at least 6.7 minutes?
A trucking company delivering bags of cement to suppliers has a fleet of trucks whose mean unloaded weight is 6700 kg with a standard deviation of 100 kg. They are each loaded with 800 bags of cement which have a mean weight of 44 kg and a standard deviation of 3 kg. The trucks travel in a convoy of four and pass over a weigh scale en route. a) The government limit on loaded truck weight is 42,000 kg. Exceeding this limit by (i) less than 125 kg results in a fine of $200, (ii) between 125 and 200 kg results in a fine of $400 and (iii) over 200 kg yields a fine of $600. What is the expected fine per truck? b) In addition to the above, the government charges a special road tax if the mean loaded weight of the trucks in a convoy of four trucks is greater than 42,000 kg. What is the probability that any particular convoy will be charged this tax?
3. In a production process of metal sticks, the length of these metal sticks is distributed normal with standard deviation of 1.8 millimeter. A random sample of 9 metal sticks are chosen and 99 percent confidence iterval is computed with lower and upper bounds of 194.65 and 197.75. The production engineer finds that these bounds are not useful. Instead he wants that these bounds should be 0.50 millimeter larger and less on both sides of the mean with 99 percent confidence interval. Compute the necessary sample size for engineer's specification.
A procurement specialist has purchased 24 resistors from vendor 1 and 28 resistors from vendor 2. Let X₁.1, X1,2,...X24 represent the vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 100 ohms and standard deviation 1.3 ohms. Similarly, let X2,1, X22X28 represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 104 ohms and standard deviation of 1.9 ohms. What is the sampling distribution of X₁ - X₂ ? What is the standard error of X₁ - X₂ ? 2 The sampling distribution of X₁ X₂ is N(μX₁-X₂ (Round the second answer to four decimal places.) The standard error of X₁ - X₂ is i = i X1-X₂ = (Round your answer to three decimal places.) ) Statistical Tables and Charts
I need help.
7. The score on a final examination was normally distributed with mean 72 and the standarddeviation 9. The top 10% of the students are receive ‘A’s. What is the minimum score thata student must get in order to receive an ‘A’?

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