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1. The budget variance for variable production costs is broken down into quantity and price variances. Explain why the quantity variance is more useful for control purposes than the price variance.
2. When should a standard cost variance be investigated?
3. What are control limits, and how are they set?
4. Explain why the materials price variance is often computed at the point of purchase rather than at the point of issuance.
5. The materials usage variance is always the responsibility of the production supervisor. Do you agree or disagree? Why?
6. The labor rate variance is never controllable. Do you agree or disagree? Why?
7. Suggest some possible causes of an unfavorable labor efficiency variance.
8. Explain why the variable overhead spending vari- ance is not a pure price variance.
A quality control analyst measures the number of hours a patient in a low-risk condition waits for care at the emergency room of a small hospital. The following data are obtained for 20 patients.
What is the probability that a randomly selected man who wears a size 12 shoe Has a height outside the range 71 inches to 76 inches, Is 74 inches or taller and Is shorter than 70.5 inches?
And the rest of the people were from River City. Out of the sample, 19 people had some form of cancer. Thirteen of these people were from Laketown
According to an IRS study, it takes a mean time of 290 minutes for taxpayers to prepare, copy and electronically transfer a 1040 tax form. The standard deviation of this distribution is 75 minutes. A consumer watchdog agency selects a random sample o..
What is the promoter's expected profit? Is the expected profit a reasonable decision criterion? Explain. How much should an insurance company charge to insure the promoter's full losses? Explain your answer.
Customers arrive at an automated coffee vending machine at a rate of 3 per minute, following a Poisson distribution. The coffee machine dispenses a cup of coffee in exactly 15 seconds.a. What is the average number of people waiting in line?
Draw the activity network for this problem and determine the Expected Times and determine the activity schedule (ES, EF, LS, and LF) as well as slack.
Consider 2 mugs. THe first contains 2 white and 7 black balls, and the second contains 5 white and 6 black balls. We flip a fair coin and then draw a ball from the first mug or the second mug depending on whether the outcome was heads or tails. What ..
In hypothesis testing we must balance the 2 types of errors, Type I and Type II. This is not unlike what happens in a jury trial. This week we will discuss the similarities and differences between hypothesis testing and the trial of a defendant. H..
A company makes a chemical product, and based on extensive experience they believe the critical-to-quality variable for this product has mean 410 and standard deviation 10.
A home remedy of Apple cider is reported to cure verrucas by users on twitter.Most said it cured it, A few said it worked partially . No one said it did not work. Is the evidence sufficient to recommend treatment with cider?
The days are between 13 and 14 customers returning items
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