Reference no: EM13974888
The personnel department of the ACME Textile Co. administers an aptitude test to all prospective assembly line employees. The average number of garments per hour that an employee can produce is approximately proportional to the score received on the aptitude test. In particular, the relationship is represented by Y; = x;/3 + s; where y; = average number of garments per hour produced by employee i, x; = score of employee i on aptitude test, /3 = proportionality factor, e; = error term,representing the deviation between actual average number of garments per hour produced by employee i and the production level implied by x;/3.
You may assume that the s/s are independent, and you may also assume that Es; = 0 and Es; = a2, V i.Suppose you had the outcome, {YI, Y2, ..., Ynl, of a random sample of average production rates for n employees, to gether with their associated scores, {x1,x2, ...,xn}, on the aptitude test.
a. Should the random sample {Y1, • • • , Ynl be inter preted as a random sample from some population distribution, or should it be interpreted as a random sample generated from a composite experiment? (Note: Itcannot be expected that the aptitude scores will all be the same.)
b. Derive the functional form of the least-squares estimator of the proportionality factor, /3. Is the Use the estimator you derived in (b) to generate an estimate of /3.
|
What is the quantum mechanical probability of the electron
: In terms of a0 and C, what is the quantum mechanical probability of the electron in a hydrogen atom being in this small volume, assuming that the nucleus is at the origin and the atom is in its ground state?
|
|
By how much more does the money supply increase
: Using a required reserve ratio of 10% and assuming that banks keep no excess reserves, imagine that $300 is deposited into a checking account. By how much more does the money supply increase if the Fed lowers the required reserve ratio to 7%?
|
|
An estimate of the time required to perform certain job
: An estimate of the time required to perform a certain job is needed. The study yielded a mean of 6.4 minutes and a standard deviation of 2.1 minutes. The desired confidence is 0.95. How many observations will be needed if the desired maximum error is..
|
|
Which the money supply can increase as result of your action
: Suppose that you take $150 in currency out of your pocket and deposit it in your checking account. Assuming a required reserve ratio of 10%, what is the largest amount (in dollars) by which the money supply can increase as a result of your action?
|
|
Least-squares estimator of the proportionality
: Derive the functional form of the least-squares estimator of the proportionality factor, /3. Is the Use the estimator you derived in (b) to generate an estimate of /3.
|
|
Differences between inpatient and outpatient hospital
: What are the major differences between inpatient and outpatient hospital services? Describe and provide examples of how these differences affect the coding process
|
|
What is tipping theory
: Tipping theory, though not new, is in the news lately, in reference to our "recession" (some say "depression"), and how we can get ourselves out of it, whatever we call it. What is tipping theory? If you've never heard of it, you may research the top..
|
|
What are the three most important ethical principles
: What are the three most important ethical principles that you feel organizations should adhere to in terms of their staffing philosophies? Why?
|
|
Part of the fed will result in a decrease in money supply
: Which of the following actions on the part of the Fed will result in a decrease in the money supply?
|