Question

In: Statistics and Probability

Please answer these questions ! 1. True or False: Measuring a sample is generally just as...

Please answer these questions !

1. True or False: Measuring a sample is generally just as expensive as measuring a population.

Select one:

True

False

2. A probability distribution has a mean of 50 and a standard deviation of 15. We plan to take a sample of 35 observations. What is the probability that the sample mean is between 53 and 54?

Select one:

a. 0.1554

b. 0.8239

c. 0.4971

d. 0.0619

Solutions

Expert Solution

Solution :

Given that ,

mean = = 50

standard deviation = =15

n = 35

= 50

=  / n= 15/ 35=2.5355

P(53<    <54 ) = P[(53 -50) / 2.5355< ( - ) / < (54 -50) /2.5355 )]

= P( 1.18< Z <1.58 )

= P(Z < 1.58) - P(Z <1.18 )

Using z table

=0.9429 0.881

=0.0619

probability=0.0619

probability=  


Related Solutions

Please answer the following true/false questions: (1 pt each) The sample mean is the median of...
Please answer the following true/false questions: (1 pt each) The sample mean is the median of the data set. (TRUE/FALSE) The most important use of a control chart is to improve the process by detecting assignable causes. (TRUE/FALSE) The eventual goal of statistical process control is the elimination of variability in the process. (TRUE/FALSE) Cause-and-effect diagram is one of the seven major tools called as magnificent seven. (TRUE/FALSE) The center line of a control chart represents the mean value of...
True or False Questions: Please answer true or false. 1. Even when care is free at...
True or False Questions: Please answer true or false. 1. Even when care is free at the point of service, we would expect low and high-income individuals with the same level of need to demand different quantities of health care. 2. We would expect the demand curve for physician visits to be more price elastic than the demand curve for inpatient hospital care. 3. A decision by the provincial governments to include counseling by psychologists within the public insurance plan...
Please answer these TRUE or FALSE questions. 1. True or False. The Born-Oppenheimer approximation accounts for...
Please answer these TRUE or FALSE questions. 1. True or False. The Born-Oppenheimer approximation accounts for scattering. 2. True or False. Tunneling is one way to approximate the solution to the Free Particle. 3. True or False. The coordinate version (x,y,z) of the Free Particle wavefunction can be normalized by including time. 4. The spin quantum number is used when combining the Hydrogen Atom and Free Particle models together.
Answer the following questions True or False. Write “True” or “False” in the blank. 1._________ The...
Answer the following questions True or False. Write “True” or “False” in the blank. 1._________ The rate constant changes if the concentrations of the reactant change. 2._________ If the concentration of a reactant changes, the rate of the reaction always changes. 3._________ The coefficients of the overall reaction tell us the order for each reactant. 4._________ The half-life for a first order reaction does not depend on the initial concentration. 5._________ If the rate of a reaction over a long...
True/False Questions. For each question below, please answer “true” or “false” and explain why. 6. A...
True/False Questions. For each question below, please answer “true” or “false” and explain why. 6. A consumer with convex preferences who is indifferent between the bundles (5,2) and (11,6) will like the bundle (8,4) at least as well as either of the first two bundles. Assume these two goods are imperfect substitutes. 7. The marginal rate of substitution is always the same constant number when the goods are imperfect substitutes and no matter how many of each good is being...
Please answer the following questions (true/false) 1. The form and substance of a company's response to...
Please answer the following questions (true/false) 1. The form and substance of a company's response to international market opportunities depend greatly on management's assumptions or beliefs about the nature of the world. 2. A patent is a distinctive motto that a manufacturer affixes to a particular product or package to distinguish it from goods produced by other manufacturers 3. The ethnocentric company is decentralized in its marketing management whereas the polycentric company is centralized. 4. Gray color is associated with...
Answer true or false to the following questions please explain your answers and answer all please  ...
Answer true or false to the following questions please explain your answers and answer all please   1.The cytoplasmatic side of the integral membrane proteins is often glycosylated. 2. Cholesterol is more enriched at the outer leaflet of the plasma membrana 3.Inner leaflet of the plasma membrane is enriched with glycolipids. 4.Membrane proteins that pomp ions in and out of the cell have specific Km values. 5. A symport would function as an antiport if its orientation in the membrane were...
Please try to answer as soon as possible. Thanks in advance. Answer the questions true, false...
Please try to answer as soon as possible. Thanks in advance. Answer the questions true, false or uncertain and provide a brief explanation or a graph to defend your answer. 1 a) A change in relative prices will always change a utility maximizing consumer’s marginal rate of substitution. 1b) Competitive firms shutdown production when price falls below the minimum of the average total cost curve. 1c) An increase the price of firms output will always increase the use of an...
Please answer these 9 questions, from 1 through 9. True or False. 1. Agricultural and food...
Please answer these 9 questions, from 1 through 9. True or False. 1. Agricultural and food policy only involves a discussion of farm programs. 2. Understanding and farm policy often requires consideration of foreign policy 3. Instability is the traditional problem confronting agriculture 4. Shifs in food supply and demand are generally accompanied by proportionately larger price changes. 5. Farm prices are unstable because the supply and demand for food is generally quite elastic. 6. Producers and consunners of agricultural...
Please answer True or False for the following questions 1. Proprietary funds use the accrual basis...
Please answer True or False for the following questions 1. Proprietary funds use the accrual basis of accounting and the economic resources measurement focus. 2. The balance-sheet like statement in Question # 3 above is actually named the Balance Sheet. 3. Of the three major types of fund statements, it is the Fiduciary Fund statements that have a Statement of Cash Flow. 4. The Internal Service Fund is found on the Proprietary Fund statements and in either the the Government...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT